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The Schmid Inside SI-LPK-AMBI-1 AMBI Lower Parts Kit Less Fire Control Group is an AR-15 lower parts kit for builders who already have a trigger group selected and want the remaining lower receiver components, including an ambidextrous semi-auto safety selector.
This kit is a strong choice for AR-15 lower builds where the shooter wants to choose a separate trigger, such as a Schmid, Geissele, LaRue, Timney, CMC, TriggerTech, or other compatible AR-15 fire control group. By leaving out the fire control group, this kit avoids paying for trigger parts that may be replaced during the build.
Ambidextrous Safety Selector Included: The key upgrade in this kit is the included AMBI Safety Selector - Semi Auto. This gives right- and left-handed shooters easier access to the safety lever and is a practical upgrade for defensive rifles, training guns, and general-purpose AR-15 builds.
Less Fire Control Group: This kit does not include the trigger, hammer, disconnector, or related fire control group parts. It is intended for builds where the user will install a separate compatible AR-15 trigger assembly.
Core AR-15 Lower Components: Schmid lists this kit with the safety detent and spring, bolt catch parts, magazine catch parts, trigger guard assembly, buffer retainer parts, A2 grip, grip screw and washer, takedown pin, pivot pin, detents, and springs needed for a standard AR-15 lower receiver build.
Builder Fit: This kit is intended for compatible AR-15 lower receivers. Always confirm lower receiver compatibility, fire control group compatibility, selector fit, grip fit, trigger guard fit, and local/state restrictions before purchase or assembly.
Related Gear: Browse more AR-15 parts, shop compatible magazines, or pair your build with compatible 5.56 NATO / .223 Ammo.
| Manufacturer |
Schmid Inside |
| Product Code / SKU |
SI-LPK-AMBI-1 |
| UPC |
850022225727 |
| Product Type |
AR-15 Lower Parts Kit |
| Configuration |
AMBI Lower Parts Kit Less Fire Control Group |
| Platform |
AR-15 |
| Safety Selector |
Ambidextrous Semi-Auto Safety Selector |
| Fire Control Group |
Not Included |
| Grip |
A2 Grip Included |
| Included Components |
AMBI Safety Selector - Semi Auto, Safety Detent, Safety Detent Spring, Bolt Catch, Bolt Catch Roll Pin 3/32 x .5, Bolt Catch Plunger, Bolt Catch Spring, Mag Catch, Magazine Catch Spring, Steel Mag Release Button, Trigger Guard Assembly, Trigger Guard Roll Pin .132 x .625, Buffer Retainer Pin, Buffer Retainer Spring, A2 Grip, Grip Screw, Grip Lock Washer, Takedown Pin, Pivot Pin, Takedown/Pivot Detents, and Takedown/Pivot Springs |
| Not Included |
Trigger, Hammer, Disconnector, Fire Control Group Components, Buffer Tube Assembly, Buffer, Buffer Spring, Stock, Receiver, Magazine, or Tools |
| Use |
AR-15 Lower Receiver Assembly, Lower Parts Replacement, Custom Trigger Builds, Ambidextrous Safety Upgrade |
| Fitment Note |
Confirm lower receiver compatibility, fire control group compatibility, selector fit, grip fit, trigger guard fit, magazine catch fit, bolt catch fit, and local/state restrictions before purchase or assembly. |
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Features
- Schmid Inside SI-LPK-AMBI-1: AMBI lower parts kit for compatible AR-15 lower receivers.
- Less Fire Control Group: Does not include trigger, hammer, disconnector, or fire control group components.
- Ambidextrous Safety Selector: Includes AMBI semi-auto safety selector for improved right- or left-handed control.
- Ideal for Custom Triggers: Useful for builders who plan to install a separate AR-15 trigger assembly.
- Lower Receiver Completion Parts: Includes key pins, detents, springs, bolt catch parts, magazine catch parts, trigger guard parts, buffer retainer parts, and grip hardware.
- A2 Grip Included: Includes A2 grip, grip screw, and grip lock washer.
- Trigger Guard Assembly Included: Includes trigger guard assembly and trigger guard roll pin.
- Standard AR-15 Build Use: Intended for compatible AR-15 lower receiver assembly and repair.
- Fitment Required: Confirm compatibility with your lower receiver, selector, grip, trigger guard area, and chosen fire control group before assembly.
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