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Davidson Defense AR-15 Pistol Lower Build Kit, Rare Breed FRT-15L3, SB Tactical SBM4 Pistol Stabilizing Brace
Davidson Defense AR-15 Pistol Lower Build Kit, Rare Breed FRT-15L3, SB Tactical SBM4 Pistol Stabilizing Brace 1

Davidson Defense AR-15 Pistol Lower Build Kit, Rare Breed FRT-15L3, SB Tactical SBM4 Pistol Stabilizing Brace

On sale: $879.99 $659.99
Retail Price$879.99
You Save:$220.00(25%)
Part Number: S-PI-P-LR15-37162
Availability: Out of Stock. Free Shipping.
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Details

The AR-15 Pistol Lower Build Kit, featuring the Rare Breed FRT-15L3 and SB Tactical SBM4 Pistol Stabilizing Brace from Davidson Defense, is engineered for the discerning gunsmith who values freedom. The core of this kit is a custom engraved AR-15 lower receiver made from durable 7075-T6 forged aluminum with a Type III hard-coat anodized finish. This serialized lower is paired with an AR-15 "Lite" Lower Parts Kit, which includes a Mil-Spec A2 grip, FRT-15L3 Forced Reset Trigger, and a heavy-duty pistol buffer tube.


The SBM4 Pistol Stabilizing Brace offers a fixed position with a 7.2" overall length, comfortable 1.0" adjustable nylon strap, and compatibility with AR-style pistol buffer tubes. The assembly includes essential components such as a H3 carbine buffer, Mil-Spec end plate, and castle nut, making it a practical choice for constructing a reliable AR-15 pistol.


Disclaimer: Trigger guard style may vary depending on current inventory.


Specifications

Product: AR-15 Pistol Lower Build Kit

Lower Receiver: AR-15 Custom Engraved Lower Receiver — Black (Davidson Defense)

Lower Receiver Material: 7075-T6 forged aluminum

Lower Receiver Finish: Type III hard-coat anodized

Platform: AR-15

Lower Receiver Serialized: Yes

Lower Parts Kit: AR-15 "Lite" Lower Parts Kit (KAK Industry)

Lower Parts Kit Includes Grip: Yes — Mil-Spec A2 grip (black)

Pistol Brace: SBM4™ Pistol Stabilizing Brace® (SB Tactical) — Black

Brace Compatibility: Fits AR-style pistol buffer tubes (diameter 1.1"–1.25")

Brace Mount: Fixed-position, non-adjustable

Brace Length: 7.2" overall

Brace Width (max): 2.1"

Brace Strap: 1.0" adjustable nylon strap included

Trigger: FRT-15L3™ Forced Reset Trigger — drop-in FRT for AR-15

Trigger Modes: 3-position — Safe / Semi / Forced Reset (3-position ambidextrous safety selector)

Trigger Fitment: Drop-in for MIL-SPEC AR-15 lowers; includes anti-walk trigger pins

Trigger Construction: 7075 anodized aluminum components; heat-treated 4140 steel internals

Buffer: AR-15 H3 carbine buffer (Davidson Defense) — 5.5 oz

Buffer Tube: Heavy-Duty pistol buffer tube for AR-15 / AR-style pistols — Mil-Spec pistol/AR compatibility

End Plate: AR-15 / M16 Mil-Spec receiver end plate (US Tactical) — phosphate finish, black

Castle Nut: AR-15 carbine castle nut — black

Recoil Spring: AR-15 carbine recoil spring — spring steel, carbine length

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