SCHMID AR-15 CARBINE BUFFER SPRING CHROME SILICON BLACK OXIDE is a straightforward carbine-style buffer spring for the AR-15 platform. Built with chrome silicon and finished in black oxide, it is a clean, practical choice for replacement use, fresh lower builds, or general-purpose carbine recoil system setups.
Chrome silicon spring material is widely used where repeated cycling and resistance to spring set matter. In recoil-spring applications, it is commonly valued for holding its properties well under repeated compression and high round counts, making it a strong material choice for a hard-working AR buffer spring.
The black oxide finish adds a subdued, non-reflective surface and is commonly used to provide mild corrosion resistance on steel parts. Put simply, this Schmid spring keeps to the essentials: the right platform, the right style, and proven materials for a standard carbine recoil system.
If you need a dependable AR-15 carbine buffer spring from a known OEM source, the SCHMID AR-15 CARBINE BUFFER SPRING CHROME SILICON BLACK OXIDE is a solid no-nonsense part that belongs in the bin for builds, repairs, and spares.
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SCHMID MIL-SPEC HARDENED STEEL BLACK OXIDE RECEIVER EXTENSION CASTLE NUT is a small part that does serious work on an AR build. This mil-spec receiver extension nut is made to secure the receiver extension and lock plate in place on an adjustable-stock AR-15 setup, giving the lower receiver assembly the proper retention it needs where it counts.
Schmid’s mil-spec version is built from hardened steel and finished in black oxide, giving you a tougher and more purpose-built part than bargain-bin hardware that cuts corners on material or finish. On a hard-use rifle, that matters. A castle nut takes real torque, and it needs to hold up when the stock assembly is properly installed and staked.
This version also includes staking cuts, which is one of the details serious builders look for. Those cuts give you the proper surface for staking the end plate into the nut after installation, helping the assembly resist loosening over time under recoil, handling, transport, and general hard use. It is a simple part, but it is one of those places where using a proper mil-spec component is just good judgment.
If you are finishing out a lower, replacing worn hardware, or building an AR the right way from the start, the SCHMID MIL-SPEC HARDENED STEEL BLACK OXIDE RECEIVER EXTENSION CASTLE NUT is a clean, dependable choice backed by a respected OEM name in the AR parts world.
AR-15 Store | AR-15 Lower Parts | Buffer Tubes & Receiver Extensions
The Schmid Inside SI-LPK-FRK1 SI LPK Field Repair Kit is a compact AR-15 lower parts repair kit with the small pins, detents, and springs commonly needed during lower receiver assembly, repair, or field maintenance. It is a smart spare-parts kit for the bench, range bag, armorer kit, or rifle case.
Small AR-15 lower receiver parts are easy to lose during assembly and can stop a build or repair if one spring, detent, roll pin, or retaining part goes missing. This Schmid Inside field repair kit gives builders and armorers a practical selection of lower parts kit spares without buying a complete lower parts kit.
Common AR-15 Lower Repair Parts: Schmid lists this kit with a hammer pin, trigger pin, safety detent, safety detent spring, bolt catch roll pin, bolt catch plunger, bolt catch spring, buffer retainer pin, buffer retainer spring, takedown spring, takedown detent, pivot spring, and pivot detent.
Useful for Builds and Repairs: This kit is useful when assembling AR-15 lowers, replacing worn or damaged lower receiver parts, recovering from a lost detent or spring, or keeping critical small parts on hand for range and field support.
Pairs Well With Custom Trigger Builds: Builders installing a separate fire control group, ambidextrous safety selector, or lower parts kit may want spare pins, springs, and detents available during assembly. This kit helps avoid stopping a build over a small missing part.
Important Fitment Note: This kit is intended for compatible AR-15 lower receivers. Confirm lower receiver compatibility, pin fit, bolt catch fit, buffer retainer fit, safety selector compatibility, takedown/pivot pin fit, and all applicable laws before purchase or installation.
Related Gear: Browse more Schmid Inside products, shop the AR-15 Store, or pair this repair kit with a compatible Schmid Inside AMBI Lower Parts Kit Less Fire Control Group.
SCHMID AR-15 STANDARD HARD BLACK ANODIZED CARBINE BUFFER 3 OZ is a straightforward standard-weight carbine buffer for the AR-15 platform. Built as a traditional 3 oz carbine buffer, it is the familiar baseline choice for rifles using a carbine receiver extension and standard carbine recoil system components.
This Schmid buffer keeps things simple and serviceable. For fresh lower builds, replacement parts, or general-purpose AR carbines, a standard 3 oz buffer remains the classic starting point when you want dependable function without adding unnecessary complexity to the recoil system.
This version also features a hard black anodized finish, giving it a clean, durable exterior finish consistent with quality AR components. That makes it a solid choice for builders who want a proper OEM-style buffer from a respected parts manufacturer.
If your build calls for a proven standard carbine buffer, the SCHMID AR-15 STANDARD HARD BLACK ANODIZED CARBINE BUFFER 3 OZ is a clean, practical part that does exactly what it ought to do.
Stars & Stripes Defense CBUCK9 is a traditional 12 gauge 2-3/4 inch 00 buckshot load built around nine lead pellets and a published 1200 feet-per-second muzzle velocity. It is for the shotgun owner who wants a conventional nine-pellet 00 buck configuration for pattern testing, training, preparedness, hunting where lawful, or other appropriate uses.
The familiar nine-pellet payload makes it easy to compare against other common 12 gauge 00 buck loads. That does not mean every shotgun will pattern it the same way. Barrel length, choke selection, ammunition lot, distance, and the individual shotgun all affect pattern size and point of impact. Pattern this load in your own firearm before relying on it for a particular application.
This is a standard 2-3/4 inch 12 gauge shell, appropriate only for shotguns chambered for 2-3/4 inch shells or longer. It is not a 3-inch magnum load, which can make it a practical option for shooters who want a common full-size 00 buckshot configuration without stepping into longer-shell recoil and capacity tradeoffs.
The load is made in Italy and packaged in a 10-round box. That box size is useful for confirming function, checking patterns at realistic distances, or keeping a manageable quantity on hand. Full cases contain 25 boxes for a total of 250 rounds.
This is a sensible choice for the buyer looking for straightforward 12 gauge 00 buckshot rather than a highly specialized premium load. It makes the most sense when the priority is a conventional nine-pellet payload, a standard 2-3/4 inch shell, and the ability to establish how the chosen shotgun patterns with that specific ammunition.
Always verify shotgun chamber length, choke suitability, local hunting rules, and safe ammunition-handling practices before purchase or use. Ammunition is non-returnable, so confirm compatibility before ordering.
The CCI Rimfire Shotshell Part #39 transforms a standard 22 Long Rifle firearm into a practical pest-control tool. Loaded with a payload of fine #12 shot rather than a traditional bullet, this unique rimfire load is designed specifically for close-range pests where a conventional projectile may be unnecessary or undesirable.
Many shooters know this type of ammunition by informal names such as snake shot, rat shot, or pest-control loads. Whatever the name, the purpose remains the same: providing a wider pattern at very short distances to improve the odds of hitting small, fast-moving pests. Around barns, feed rooms, workshops, campsites, gardens, and fence lines, these loads have earned a loyal following among farmers, ranchers, trappers, outdoorsmen, and property owners.
The CCI shotshell uses a capsule containing fine #12 shot that disperses after leaving the barrel. Unlike a conventional bullet, the shot pattern spreads quickly, making it easier to connect with small targets at close range. CCI specifically markets this load for short-range pest control and easier hits on nuisance animals.
Because the shot pattern spreads rapidly, these loads are intended for very short distances. They are ideal for snakes encountered around outbuildings, rodents around feed storage, small pests in gardens, and similar situations where precision rifle accuracy is less important than placing a cloud of shot onto a small moving target.
Popular Pairings: CCI Rimfire Shotshells work particularly well in 22 LR revolvers, bolt-action rifles, lever-action rifles, and single-shot firearms. Many rural property owners keep a box on hand specifically for pest-control situations where conventional ammunition may not be the best choice.
Why Keep a Box Around? Most ammunition is purchased for hunting, target shooting, or personal defense. Rimfire shotshells fill a completely different role. They are the type of ammunition you may not use every week, but when you need them, nothing else works quite the same. For many farm and ranch owners, a box of CCI shotshells is simply part of the standard equipment kept alongside a good 22 rifle or revolver.
For generations, CCI shotshell ammunition has been one of the most practical specialty loads available for the 22 Long Rifle platform. Lightweight, effective at close range, and easy to carry, it remains a useful solution for dealing with nuisance pests without stepping up to a shotgun.
Shop more rimfire ammunition at Huckleberry Arms: 22 Long Rifle Ammunition | Rimfire Ammunition | CCI Ammunition | Ammunition
The Federal Premium Personal Defense Punch .22 LR (PD22L1) is specialized rimfire ammunition developed to improve penetration and reliability from compact .22 Long Rifle handguns. Built around a 29-grain nickel-plated, lead-core flat-nose projectile, Punch differs from conventional rimfire hollow-point loads by emphasizing controlled projectile behavior and deeper penetration rather than aggressive expansion.
Federal developed Punch specifically around the limited barrel length and velocity of compact rimfire handguns. The ammunition is designed to achieve useful penetration from short barrels rather than depending on the velocity normally associated with longer rifles. Federal reports approximately 1,070 fps from a 2-inch handgun, making it particularly relevant to compact .22 LR revolvers and pistols.
The lightweight 29-grain projectile features a nickel-plated lead core and flat-nose profile. This combination is engineered to minimize expansion and retain the penetration characteristics Federal considers important in a rimfire personal-defense cartridge. Unlike conventional hollow-point bullets, the Punch projectile is not designed around creating a large expanded diameter.
Federal uses nickel-plated cartridge cases to improve corrosion resistance and promote smooth chambering and extraction. The nickel finish also provides a distinctive appearance that separates Punch from ordinary brass-cased rimfire ammunition.
Rimfire ammunition relies on priming compound distributed within the cartridge rim, making consistent ignition especially important. Federal emphasizes stringent function testing for Punch, including ignition and reliable operation in compatible firearms. As with all rimfire ammunition, actual performance must be evaluated in each individual firearm.
Federal's current ballistic specifications list 1,080 fps and approximately 75 foot-pounds of muzzle energy for PD22L1. Its original product literature also reports velocities reaching approximately 1,650 fps from a 24-inch rifle barrel. These figures illustrate the substantial effect barrel length can have on this particular load and should not be interpreted as guaranteed velocities in every firearm.
The Punch cartridge is a logical ammunition option to evaluate in compact rimfire revolvers such as the Smith & Wesson Model 43C AirWeight. The Model 43C's 1.875-inch barrel closely resembles the short-barrel handgun application around which Federal developed this ammunition. Owners should confirm ammunition suitability, consistent ignition, accuracy, and point of impact in their particular revolver.
Although Federal designed Punch for personal defense, .22 LR remains a relatively low-energy rimfire cartridge compared with common centerfire defensive handgun ammunition. Punch is intended to improve the performance available within those limitations rather than eliminate them. Customers should consider firearm reliability, ammunition performance, and their individual requirements when evaluating a defensive firearm.
One factory-sealed box containing 50 rounds of Federal Premium Personal Defense Punch .22 Long Rifle ammunition with 29-grain nickel-plated flat-nose bullets and nickel-plated cartridge cases. Manufacturer part number PD22L1; UPC 604544671162. Ammunition shipping and age restrictions apply.
Explore compatible .22 LR firearms and range accessories already available from Huckleberry Arms.
The Die Free Co Plug™ is a purpose-built storage insert designed exclusively for the Die Free Co Kung Fu Grip. This clever upgrade adds useful internal storage while also improving grip ergonomics for shooters with larger hands.
The Plug allows the Kung Fu Grip to securely store two CR123, AA, or AAA batteries, along with a dedicated slot for a CR2032 battery. Additional storage pockets allow users to carry a small Allen or Torx wrench and even a MultiTasker NANO Tool inside the grip.
Beyond storage, the Plug also extends the grip length by approximately 0.25 inches and squares off the back of the grip to better fill the shooter’s palm. This small change can significantly improve comfort and control for users with larger hands.
The Plug installs using a secure friction-fit design and is constructed from durable rubber for long service life. Integrated water drainage holes help prevent moisture buildup inside the grip.
Compatibility: Designed exclusively for the Die Free Co Kung Fu Grip.
Available from Huckleberry Arms.
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Huckleberry Arms carries a growing selection of Die Free Co gear and accessories designed to enhance reliability, durability, and performance for modern sporting rifles.
The Hornady® Varmint .22 Caliber 55 Grain Soft Point is designed for reliable expansion and consistent accuracy in varmint and predator applications. Built with Hornady’s precision manufacturing standards, this bullet delivers dependable performance for .223 Remington and other .224 caliber cartridges.
The soft point design promotes controlled expansion upon impact, making it well-suited for small to medium varmints where terminal performance and energy transfer are critical. Its flat-base profile supports stable flight and consistent accuracy at typical varmint shooting distances.
Each bullet is manufactured with precise jacket concentricity and uniform core construction, ensuring consistent weight and balance from lot to lot. This results in predictable performance whether you're loading for hunting, training, or general-purpose shooting.
Application Insight: The 55 grain soft point remains one of the most versatile .224 projectiles available—light enough for high-velocity performance while still offering reliable expansion on target. It is a practical choice for shooters seeking a balance between accuracy, terminal effect, and cost-effective loading.
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The Norma Range & Training 5.56x45 55 Grain FMJ is straightforward rifle ammunition built for the shooting most AR-15 owners actually do: practice, drills, zero confirmation, recreational shooting and maintaining proficiency.
Each factory box contains 20 rounds loaded with a conventional 55-grain full metal jacket projectile in a brass cartridge case.
Norma publishes a muzzle velocity of approximately 3,250 fps and muzzle energy of approximately 1,289 ft-lbs for exact product number 701701313.
The 55-grain FMJ is one of the most familiar projectile configurations associated with 5.56x45 ammunition.
A full metal jacket projectile is well suited to general-purpose range and training use where reliable operation, consistent ammunition and reasonable cost per round matter more than specialized hunting or expanding-bullet performance.
Typical applications include:
Norma specifically places this load in its Range & Training ammunition family.
The objective is not an expensive bonded, monolithic or match projectile. It is ammunition designed to let shooters put rounds downrange and practice with their rifles without consuming ammunition built for more specialized applications.
Norma describes this load around consistent performance, clean-burning powder and reliable cycling in appropriate AR-platform and bolt-action rifles.
Norma specifies brass cases for product 701701313.
Brass remains the conventional case material for quality centerfire rifle ammunition and provides the feeding, chambering and extraction characteristics expected from general-purpose training ammunition.
Norma currently publishes a muzzle velocity of approximately 3,250 feet per second for this exact 20-round load.
The corresponding published muzzle energy is approximately 1,289 foot-pounds.
Actual velocity will vary with barrel length, chamber dimensions, atmospheric conditions and the individual rifle. Shorter barrels will generally produce lower velocity than longer factory test configurations.
This ammunition is marked and loaded as 5.56x45mm.
It should be used in firearms chambered and manufacturer-approved for 5.56x45 NATO or another chamber specification expressly approved for firing 5.56 ammunition, such as an appropriate .223 Wylde chamber.
Do not assume that every firearm marked only ".223 Remington" is approved for 5.56x45 ammunition.
Although .223 Remington and 5.56x45 cartridges are dimensionally very similar, chamber specifications and allowable operating pressures are not identical. Follow the firearm manufacturer's ammunition and chambering instructions.
The popularity of 5.56x45 in the AR-15 makes ammunition consumption add up quickly.
A basic 55-grain FMJ gives a shooter a sensible load for practicing the skills that require repetition: sight picture, trigger control, positional shooting, reloads and keeping a rifle zeroed.
Rather than spending premium hunting or specialized defensive ammunition on routine practice, a dedicated training load lets those more expensive cartridges remain available for the jobs they were built to perform.
The 20-round box is useful for shooters who want to test Norma Range & Training ammunition through an individual rifle before buying a larger quantity.
It is also convenient for supplementing an ammunition order or keeping several compact boxes organized in a range bag or ammunition can.
For shooters who already know they like this type of ammunition and expect to fire substantially more than a single magazine during a range session, Norma also offers a 250-round 5.56x45 55gr FMJ bulk package.
The larger bulk configuration is particularly well suited to extended range sessions, carbine courses and higher-volume practice, while this 20-round SKU remains the easier way to try the ammunition or buy smaller quantities.
Fifty-five-grain 5.56 ammunition is widely used through common AR-15 barrel twist rates.
Individual rifles can still show preferences for particular ammunition, bullet weights and lots. Shooters seeking the smallest possible groups should evaluate ammunition in the actual rifle rather than assuming every barrel will produce identical accuracy.
Even ammunition sharing the same caliber and bullet weight can produce a different point of impact because of variations in velocity, projectile shape and barrel harmonics.
After changing ammunition brands or loads, confirm the rifle's zero before depending on previous ballistic holds.
Popular Pairings & Related Products: Norma Rifle Ammo | Centerfire Rifle Ammunition | AR-15 Magazines | AR-15 Store
