Reptilia's Constant-Cheek-Weld Carbine Stock in Flat Dark Earth

The Reptilia RECC-E Carbine Stock 100-142 is a lightweight adjustable stock system for AR-15 / M4-pattern rifles that takes a different approach from the conventional stock sliding over a standard M4 receiver extension.

The RECC-E uses its own proprietary carbine-length receiver extension and stock architecture to provide adjustable length of pull while maintaining a consistent upper cheek surface throughout the adjustment range.

This Flat Dark Earth version weighs just 12.0 ounces including the supplied receiver extension, giving a builder an unusually light complete stock-and-tube package without sacrificing useful length-of-pull adjustment.

Constant Cheek Weld Through the Adjustment Range

The RECC-E was designed around a constant cheek-weld concept. Rather than exposing different portions of a conventional buffer tube as the stock changes position, the RECC-E maintains a continuous upper surface intended to give the shooter a more repeatable facial index.

That is particularly useful on carbines equipped with red dots, magnifiers, prism sights or LPVOs where consistent head placement helps produce a repeatable sight picture.

10.8" to 14.2" Length of Pull

Reptilia specifies a 10.8-inch to 14.2-inch length-of-pull range for the standard AR-15 carbine configuration.

That gives the stock approximately 3.4 inches of adjustment, allowing the rifle to accommodate different shooters, clothing, equipment and shooting positions without abandoning the RECC-E's streamlined geometry.

Proprietary Receiver Extension Included

The RECC-E does not install on a normal Mil-Spec M4 buffer tube.

Reptilia supplies 100-142 with its own proprietary carbine-length receiver extension. Reptilia's current FAQ is explicit that the RECC-E uses a proprietary tube included in the box.

The supplied receiver extension is manufactured from 7075-T6 aluminum with a Type III anodized finish.

Uses a Standard AR-15 Carbine Buffer and Spring

The receiver extension itself is proprietary, but the recoil components inside it do not have to be.

Reptilia confirms that the standard RECC-E configuration works with a standard Mil-Spec AR-15 carbine buffer and action spring.

That gives the builder the benefits of Reptilia's stock geometry without forcing the rifle into an unusual proprietary buffer or spring.

7075-T6 Aluminum and Glass-Filled Polymer

The system combines a 7075-T6 aluminum receiver extension with an impact-modified glass-filled nylon stock body and nitrided alloy-steel hardware.

This combination keeps overall system weight low while retaining metal components at the primary structural and adjustment interfaces.

Flat Dark Earth

This SKU is finished in Flat Dark Earth, making it a natural match for FDE receivers, grips, rails and earth-tone accessories.

The color also works well on mixed black-and-FDE builds where a fully monochromatic rifle is not the goal.

Ambidextrous QD Sling Attachment

The RECC-E incorporates ambidextrous push-button QD sling attachment points, allowing the sling to be configured from either side of the stock.

That provides a rear attachment point without requiring a separate receiver-end sling plate or clamp-on adapter.

Rubber Buttpad

A rubber buttpad provides a non-slip contact surface at the shoulder while keeping the stock compact and relatively light.

The RECC-E avoids the bulk of a large precision stock while still providing more usable shoulder contact than many minimalist skeletal designs.

A5 and SR-25 Compatibility Requires the Correct Configuration

The broader RECC-E architecture is compatible with longer recoil systems such as VLTOR A5 and SR-25-style systems, but that does not mean the standard 100-142 package ships as an A5 or SR-25 stock.

Reptilia explains that the RECC-E can support these systems by using the appropriate receiver extension and front stock components. Its current FAQ also confirms A5 and compatible SR-25 / large-frame capability.

SKU 100-142 ships in the AR-15 carbine-length configuration with the proprietary Reptilia carbine receiver extension.

No Castle Nut or End Plate Required for the Reptilia Tube

One practical advantage of Reptilia's round proprietary receiver-extension design is installation simplicity.

Reptilia notes that the RECC-E system does not require the receiver extension to be timed in the same way as a conventional M4 tube and does not use the normal castle nut / end-plate arrangement.

A Purpose-Built Carbine Stock Rather Than Another M4 Copy

The RECC-E makes the most sense for someone who wants something meaningfully different from the conventional six-position M4 stock.

The combination of constant cheek weld, proprietary 7075 receiver extension, standard internal carbine buffer compatibility, 12-ounce system weight and 10.8–14.2" LOP range gives the RECC-E its own niche.

For a lightweight general-purpose carbine or RECCE-style rifle where repeatable head position matters, 100-142 provides that design in a clean Flat Dark Earth package.

Shop more AR lower-receiver components:
AR-15 Lower Half Parts

A Different Approach to the Adjustable AR Stock

The Reptilia RECC-E Carbine Stock 100-141 is a lightweight adjustable stock system for SR-15, M4 and AR-15-pattern rifles that approaches length-of-pull adjustment differently from a conventional stock sliding over a standard M4 receiver extension.

Instead, the RECC-E uses its own proprietary carbine-length receiver extension and stock architecture to provide an adjustable length of pull while maintaining a more consistent cheek surface through the adjustment range.

The entire AR-15 configuration weighs just 12.0 ounces including the receiver extension, making it an interesting alternative for a carbine where low weight, clean lines and consistent head position matter.

Constant Cheek Weld Through the Adjustment Range

A traditional M4-style stock slides along the outside of the receiver extension, so the relationship between the shooter's cheek, stock body and exposed tube changes as the stock is adjusted.

The RECC-E was designed around a constant cheek-weld concept. The stock architecture maintains a continuous upper surface intended to give the shooter a more consistent facial index throughout its usable length-of-pull range.

That can be particularly useful on a rifle equipped with a red dot, magnifier, LPVO or other optic where repeatable head placement helps produce a consistent sight picture.

10.8" to 14.2" Length of Pull

Reptilia specifies an adjustable 10.8-inch to 14.2-inch length of pull for the AR-15 / M4 version.

That gives the stock approximately 3.4 inches of usable LOP adjustment, allowing the rifle to accommodate different shooters, clothing, equipment and shooting positions without giving up the streamlined RECC-E architecture.

Proprietary 7075-T6 Receiver Extension Included

The RECC-E does not install onto a conventional M4 / Mil-Spec carbine buffer tube.

Reptilia supplies the stock with its own proprietary carbine-length receiver extension manufactured from 7075-T6 aluminum with a Type III Mil-Spec anodized finish.

That distinction is important when replacing an existing stock: the original receiver extension is removed and replaced with the Reptilia tube supplied with the RECC-E.

Uses a Standard AR-15 Carbine Buffer and Spring

Although the physical receiver extension is proprietary, Reptilia confirms that the standard SR-15 / M4 / AR-15 RECC-E configuration is compatible with a standard Mil-Spec AR-15 carbine buffer and action spring.

That means the stock system does not force the builder into a proprietary internal buffer or spring merely because the external receiver-extension geometry is different.

Modular A5 / SR-25 Capability

The overall RECC-E system is modular. Reptilia offers a separate A5 / SR-25 RECC-E conversion kit and a dedicated SR-25 / A5 / AR-10 version of the stock.

SKU 100-141 is the SR-15 / M4 / AR-15 carbine-length configuration. It should not be confused with the dedicated large-frame / A5 product now sold separately.

If converting the stock to an A5 or SR-25-length recoil system, use the proper Reptilia components and the correct buffer and spring for that operating system.

Impact-Modified Glass-Filled Nylon Construction

The stock body is manufactured from impact-modified glass-filled nylon polymer. Reptilia combines that polymer structure with the 7075 aluminum receiver extension and nitrided alloy-steel hardware.

The combination keeps the complete AR-15 stock assembly at 12 ounces while retaining metal components at the structural and adjustment interfaces.

Integrated Sling Attachment

The RECC-E incorporates ambidextrous QD sling attachment points, allowing compatible push-button swivels to be positioned for either right- or left-side sling use.

Reptilia also now offers additional RECC-E sling accessories, including front-end and rear attachment options for users who want to tailor sling placement around a particular rifle setup.

Rubber Buttpad

A rubber buttpad provides a non-slip shoulder surface without adding the size and weight of a large precision-style stock.

The result remains compact enough for a working carbine while providing more shoulder contact and stability than very small minimalist stock designs.

Designed at the Request of a Military End User

Reptilia states that the RECC-E was developed over more than two years and originated from a request by a military end user.

The design objective was not simply to make another collapsible M4 stock. The constant cheek weld, proprietary receiver extension, modular recoil-system architecture and low overall weight are what separate the RECC-E from conventional tube-mounted stocks.

Made in the USA

The Reptilia RECC-E is made in the United States.

Who Is the RECC-E For?

The RECC-E makes the most sense for a builder who values a consistent cheek weld and lightweight package enough to replace the conventional M4 receiver extension rather than simply sliding another stock onto the existing tube.

For a compact general-purpose carbine, lightweight rifle or precision-oriented AR where consistent head position matters, its 12-ounce system weight and 10.8–14.2" adjustment range provide an unusual combination of light weight and useful stock geometry.

Popular Pairings:

• Standard Mil-Spec AR-15 carbine buffer
• Standard Mil-Spec AR-15 carbine action spring
• Reptilia RECC-E sling attachment accessories
• Reptilia A5 / SR-25 conversion components when building the appropriate recoil system

Shop more AR parts at Huckleberry Arms:
AR-15 Lower Half Parts

The Complete A2 Stock and Rifle-Length Recoil System

The Luth-AR BS-A2K A2 Butt Stock Kit gives an AR-15 builder the complete rear stock and rifle-length recoil-system package needed for a traditional fixed A2 configuration.

This is more than an A2 stock shell. Luth-AR packages the fixed A2 buttstock, rifle receiver extension, .223/5.56 rifle buffer, rifle buffer spring, aluminum A2 spacer and upper stock screw together so the major components of the fixed-stock system are already matched and ready for installation.

For a traditional 20-inch rifle, retro-inspired build, service-rifle-style AR or simply a shooter who prefers a solid fixed stock over an adjustable carbine stock, the BS-A2K provides the classic A2 configuration in one package.

Why Choose an A2 Fixed Stock?

The A2 stock represents a very different approach from the collapsible M4-style stock.

Instead of adjusting length of pull by sliding along a carbine receiver extension, the A2 uses a solid fixed stock and rifle-length receiver extension. The result is a stable shoulder interface with no sliding stock body, adjustment latch or exposed carbine tube.

A fixed stock also provides a long, consistent cheek surface and works naturally with traditional rifle-length AR configurations.

Complete Rifle-Length Buffer System Included

The BS-A2K includes the major components required to establish a conventional AR-15 rifle-length recoil system:

• A2 Butt Stock – BS-A2
• A2 Upper Butt Stock Screw – A2-01
• Aluminum A2 Spacer – A2S-01
• Rifle Receiver Extension – BS-09
• .223 / 5.56 Rifle Buffer Spring – BS-10B
• .223 / 5.56 Rifle Buffer – BS-11

That makes the kit especially convenient when converting a lower from a carbine-style stock system or building a fixed-stock lower from the beginning.

Rifle-Length Buffer System — Not a Carbine Kit

The included receiver extension, buffer and spring are rifle-length components.

They should not be confused with the shorter receiver extension, buffer and spring used in a conventional collapsible M4-style carbine system.

The dimensions of the recoil components are designed to work together. Do not substitute a carbine buffer into the included rifle receiver extension or mix rifle and carbine recoil components without understanding the dimensional differences between the two systems.

The A2 Spacer Matters

The A2 stock is longer than the earlier A1 pattern, and the included aluminum spacer occupies the additional space between the rear of the rifle receiver extension and the A2 buttstock.

The supplied longer A2 stock screw then secures the complete assembly.

Including the correct spacer and screw is a small detail that makes the complete BS-A2K kit more useful than purchasing an A2 stock body by itself.

Foam-Filled Stock Body

Luth-AR describes its A2 stock as foam filled. The internal foam helps give the otherwise hollow polymer stock body a more substantial feel while retaining the familiar external A2 profile.

The stock uses a polymer trap door at the butt, retaining the classic A2 storage-compartment design.

Classic A2 Storage Compartment

The hinged trap door provides access to the internal buttstock storage compartment traditionally used for compact cleaning gear or other small field items.

It is one of the features that distinguishes a traditional A2 rifle stock from minimalist fixed stocks and collapsible carbine furniture.

A2 Length and Rifle Ergonomics

The A2 is a full-size fixed rifle stock. That makes it particularly comfortable for shooters who prefer a longer, consistent length of pull and a broad cheek surface rather than the compact dimensions of a collapsed carbine stock.

On a traditionally configured AR-15 rifle, the A2 stock also places some additional mass toward the rear of the firearm, which can help balance longer barrels and full-length handguards.

A Natural Choice for Traditional AR Builds

The A2 configuration makes particular sense for:

• 20-inch AR-15 rifle builds
• A2-style and service-rifle-inspired rifles
• Retro-influenced builds where an A1-length stock is not required
• Precision or bench-oriented rifles where an adjustable carbine stock is unnecessary
• General-purpose rifles where simplicity and a consistent stock position are preferred

Black A2 Configuration

This listing is for BS-A2K in Black. Luth-AR also manufactures a separate OD Green version under SKU BS-A2K-G.

Using the exact SKU distinction prevents confusion when matching the stock to the rest of the rifle's furniture.

Made in America

Luth-AR identifies the A2 Butt Stock Kit as an American-made product.

For a builder who wants the familiar fixed-stock geometry of the traditional AR rifle and would rather purchase the complete recoil system together than assemble it component by component, the BS-A2K is a straightforward solution.

Shop more Luth-AR and AR-15 components at Huckleberry Arms:
Luth-AR | AR-15 Lower Half Parts | AR-15 Store

The Honey Badger as Q Intended It: Short, Lightweight and Suppressed

The Q Honey Badger SD HB-300BLK-7IN-HBSIL is the factory-suppressed version of Q's compact 300 Blackout platform, pairing the Honey Badger's 7-inch, 1:5-twist barrel with Q's dedicated HB titanium silencer.

This is not an ordinary Honey Badger SBR with an aftermarket suppressor added later. The SD configuration is designed as a complete system around suppressed 300 Blackout use, with the silencer tucked beneath the extended handguard to keep the rifle narrow and compact while still providing useful handguard length.

Q lists the complete Honey Badger SD at approximately 5.4 pounds with an overall length of approximately 26.75 to 31.75 inches, depending on stock position.

7" 300 Blackout Barrel with 1:5 Twist

At the core of the Honey Badger is Q's 7-inch 300 Blackout barrel with a fast 1:5 twist rate.

The short barrel keeps the firearm compact, while the fast twist is particularly useful with the long, heavy projectiles commonly associated with subsonic 300 Blackout ammunition.

300 Blackout is particularly well suited to compact platforms because it was developed to provide useful performance from short barrels while accommodating both lightweight supersonic and heavy subsonic ammunition.

Dedicated HB Titanium Silencer

The Honey Badger SD includes Q's purpose-built HB titanium silencer.

The Honey Badger silencer uses a slim approximately 1.5-inch diameter profile that allows it to fit beneath the SD handguard without creating the oversized front end that can result from tucking a larger-diameter rifle suppressor inside a rail.

Titanium construction also helps control forward weight. That matters on a rifle whose entire design philosophy revolves around keeping the complete system compact, lightweight and quick to handle.

Direct-Thread Tapered Silencer Interface

The Honey Badger SD uses a dedicated suppressor mounting arrangement rather than simply placing the standard Honey Badger Cherry Bomb at the end of the barrel.

The barrel and HB silencer use Q's direct-thread tapered mounting interface. The taper provides a precise mating surface intended to help align the silencer concentrically with the bore while creating a secure mounting interface.

This dedicated arrangement is another reason to view the Honey Badger SD as an integrated factory system rather than merely an SBR and an unrelated suppressor packaged together.

Adjustable Pistol-Length Gas System

The Honey Badger uses a pistol-length adjustable gas system.

That adjustability is particularly useful with 300 Blackout because the cartridge operates across a broad range of ammunition, from lightweight supersonic loads to very heavy subsonic ammunition used with a suppressor.

The adjustable gas system allows the rifle to be tuned for the ammunition and operating configuration being used rather than forcing one fixed gas setting to compromise across dramatically different loads.

Two-Position PDW Stock

The Honey Badger's compact overall length is not achieved solely through its short barrel.

Q uses a proprietary two-position PDW-style collapsible stock, allowing the firearm to collapse into a very short package while still providing a rigid shoulder stock when extended.

The compact recoil and stock system eliminates the long conventional M4-style receiver extension found on most AR-pattern rifles and is a major part of the Honey Badger's distinctive profile.

Lightweight Receiver and Handguard Architecture

One of the Honey Badger's defining characteristics is how little unnecessary material Q leaves on the firearm.

The receiver and handguard are aggressively machined for low weight, and the upper omits a conventional forward assist. Even with the HB titanium silencer installed, the complete SD remains approximately 5.4 pounds.

Suppressors normally add noticeable mass at the front of a rifle. Starting with an exceptionally light firearm and using a titanium silencer helps keep that additional forward weight under control.

Full-Length Top Rail and M-LOK Handguard

The upper provides a Picatinny top rail for compatible red dots, magnifiers, fixed-power optics, night-vision equipment and other sighting systems.

The handguard incorporates M-LOK mounting slots for lights, sling hardware and other accessories.

Because the HB silencer sits beneath the handguard, accessory mounting hardware used toward the front of the rail should always be checked for adequate clearance from the suppressor body.

Two-Stage Trigger and 70-Degree Safety

Q equips the Honey Badger SD with a 2-stage trigger and a short-throw 70-degree safety selector.

The controls remain immediately familiar to shooters accustomed to the AR platform while the shorter selector throw reduces the amount of rotation required between SAFE and FIRE.

Designed Around Suppressed 300 Blackout

The Honey Badger concept grew from the idea of combining familiar AR-style controls and magazine architecture with the compact dimensions traditionally associated with a personal-defense weapon.

300 Blackout makes that concept practical because the same basic firearm can use lightweight supersonic ammunition when velocity is the priority or heavy subsonic ammunition when suppressed sound reduction is the goal.

The Honey Badger SD takes that concept to its logical conclusion by integrating the 7-inch barrel, fast 1:5 twist, adjustable gas system, compact stock and dedicated titanium silencer into one factory configuration.

Honey Badger SD vs. Standard Honey Badger SBR

The standard Honey Badger SBR and Honey Badger SD share the same basic platform but are different factory configurations.

• Honey Badger SBR: 7" 300 BLK barrel, 1:5 twist and conventional Q muzzle-device configuration without the HB silencer included
• Honey Badger SD: 7" 300 BLK barrel, 1:5 twist, dedicated direct-thread HB titanium silencer and extended suppressor-tucked handguard configuration

This listing is specifically for the Q Honey Badger SD, manufacturer part number HB-300BLK-7IN-HBSIL, UPC 866955000362.

Popular Pairings for the Q Honey Badger SD

The Honey Badger SD is already a highly integrated firearm, so the most useful accessories are those that complement its lightweight design and the unique supersonic/subsonic capabilities of 300 Blackout rather than simply adding unnecessary equipment.

• Trijicon ACOG 3x30 .300 Blackout BDC – TA33-C-400164
  The compact Trijicon TA33 combines fixed 3x magnification with a reticle designed specifically around .300 Blackout ammunition, including separate references for supersonic and subsonic loads. Its small size and low weight are particularly well matched to the Honey Badger's lightweight design. Actual points of impact should always be confirmed with the Honey Badger's 7" barrel and the specific ammunition being used.
• Q G-SLING – Black
  Q's lightweight minimalist sling is a natural companion to the Honey Badger. The G-SLING uses Q's lightweight Sling Devil attachment system rather than adding bulky conventional mounting hardware, helping preserve the rifle's compact, low-weight character.
• Lancer L5AWM 300 Blackout 20-Round Magazine – Translucent Smoke
  Lancer's dedicated .300 Blackout magazine uses internal geometry optimized for long, heavy subsonic cartridges. The shorter 20-round body also works especially well beneath a compact firearm such as the Honey Badger and is convenient for prone, bench, hunting and vehicle use.
• Additional AR-15 / 300 Blackout Magazines
  Dedicated magazines make it easier to keep different .300 Blackout loads organized. Clearly identifying magazines loaded with subsonic versus supersonic ammunition is particularly useful on a rifle designed to take advantage of both.

A Natural Match for Dedicated 300 Blackout Magazines

The Honey Badger's ability to move between very different projectile weights is one of its greatest strengths, but it also makes ammunition organization important.

Lightweight supersonic .300 Blackout cartridges and long, heavy subsonic cartridges can both be used in AR-pattern magazines, but dedicated .300 Blackout magazines such as the Lancer L5AWM 300BLK provide additional internal clearance specifically for the longer projectile profiles found in many heavy subsonic loads.

Using visually distinct magazines for different loads also makes it easier to know whether the rifle is currently configured around supersonic or subsonic ammunition without having to inspect individual cartridges.

Why a Dedicated 300 Blackout Optic Makes Sense

A conventional red dot works well on a compact Honey Badger, but a dedicated .300 Blackout optic can take greater advantage of the cartridge's broad ballistic envelope.

The Trijicon TA33 .300 Blackout ACOG is particularly interesting because its reticle provides references for both supersonic and subsonic ammunition rather than forcing the shooter to apply one trajectory to two dramatically different loads.

The TA33 is also relatively compact and lightweight, maintaining the Honey Badger's original handling characteristics better than a large variable-power optic.

Keep the Sling as Light as the Rifle

A 5.4-pound suppressed rifle does not benefit from hanging unnecessary weight from it.

Q's G-SLING follows the same minimalist philosophy as the Honey Badger itself: lightweight materials, simple adjustment and compact attachment hardware.

That makes it a particularly logical pairing for a firearm whose entire design revolves around removing weight and bulk wherever possible.

Important NFA Transfer Information

The Honey Badger SD package contains both a short-barreled rifle and a silencer, each subject to applicable National Firearms Act requirements.

The firearm and silencer must be transferred in accordance with all applicable federal, state and local laws through appropriately licensed dealers. Buyers should verify that possession of both the SBR and silencer is lawful in their jurisdiction before ordering.

This is not a conventional Title I rifle and should not be treated as an ordinary firearm transfer.

What Makes the Honey Badger SD Different

The reason to choose the Honey Badger SD is not simply because it is short or because a suppressor is included.

The attraction is that Q designed the major components around one another: a 7-inch 1:5-twist 300 Blackout barrel, adjustable pistol-length gas system, direct-thread tapered titanium silencer, lightweight receiver set, suppressor-tucked handguard and ultra-compact collapsible stock.

For the buyer specifically looking for the factory Honey Badger experience rather than assembling a compact 300 Blackout rifle from unrelated components, the SD is the most complete expression of the platform.

Complete your Honey Badger setup:
Trijicon .300 BLK ACOG | Q G-SLING | Lancer .300 BLK 20RD Magazine | AR-15 Magazines