AT3 Tactical Mil-Spec AR-15 Lower Build Kit with Brace
Features
- Includes the parts needed to complete a stripped AR-15 lower receiver with a pistol brace setup
- Magpul BSL brace gives this kit a different rear-end setup than a standard M4 stock lower build kit
- Mil-spec control layout keeps the lower simple, familiar, and easy to maintain
- Includes an A2 pistol grip, carbine buffer assembly, fire control components, and lower receiver small parts
- Good fit for AR-15 pistol lower builds that do not need ambidextrous controls or upgraded furniture
The AT3 Tactical Mil-Spec AR-15 Lower Build Kit with Brace includes the parts needed to finish a stripped AR-15 lower receiver with a straightforward pistol brace configuration. It combines standard lower controls, fire control components, an A2 grip, a carbine buffer assembly, and a Magpul BSL brace for builders who want a complete lower parts package without sourcing each piece separately.
Note: This kit is not assembled. Stripped lower receiver is not included.
Specifications
- Brand: AT3 Tactical
- Model: Mil-Spec AR-15 Lower Build Kit with Brace
- MPN: AT3-MILSPEC-AR15-LWRBK-WBRACE
- Platform: AR-15
- Control Type: Mil-Spec
- Brace: Magpul BSL AR-15 Pistol Arm Brace
- Grip: A2 mil-spec pistol grip
- Buffer System: Carbine buffer assembly
- Buffer Weight: 3.0 oz
- Color: Black
What’s Included
- 1x AT3 AR-15 Mil-Spec Bolt Catch – Black
- 1x AT3 Mil-Spec AR-15 Bolt Catch Plunger
- 1x AT3 Mil-Spec AR-15 Bolt Catch Pin
- 1x AT3 Mil-Spec AR-15 Bolt Catch Spring
- 1x AT3 Mil-Spec AR-15 Buffer Retainer
- 1x AT3 Mil-Spec AR-15 Buffer Retainer Spring
- 1x AT3 Mil-Spec AR-15 Magazine Catch – Black
- 1x AT3 Mil-Spec AR-15 Magazine Catch Button – Black
- 1x AT3 Mil-Spec AR-15 Magazine Catch Spring
- 1x AT3 Mil-Spec AR-15 Pivot Pin – Black
- 2x AT3 Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent
- 2x AT3 Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent Spring
- 1x AT3 Mil-Spec AR-15 Safety Selector – Black
- 1x AT3 Mil-Spec AR-15 Selector Detent
- 1x AT3 Mil-Spec AR-15 Selector Detent Spring
- 1x AT3 Mil-Spec AR-15 Takedown Pin – Black
- 1x AT3 Mil-Spec AR-15 Pistol Grip Screw
- 1x AT3 Carbine Buffer – 3.0 oz
- 1x AT3 Carbine Buffer Spring for AR-15
- 1x AT3 Castle Nut for AR-15 Buffer Tubes – Black
- 1x AT3 Mil-Spec Buffer Tube – AR-15 – Black
- 1x AT3 Mil-Spec End Plate for AR-15 – Black
- 1x AT3 Mil-Spec AR-15 Disconnector Spring
- 1x AT3 Mil-Spec AR-15 Hammer Spring
- 2x AT3 Mil-Spec AR-15 Hammer/Trigger Pin
- 1x AT3 Mil-Spec AR-15 Trigger Spring
- 1x AT3™ GI Mil-Spec AR-15 Trigger – Curved
- 1x STNGR Mil-Spec 7075 Trigger Guard Assembly
- 1x AT3 AR-15 A2 Mil-Spec Pistol Grip
- 1x Magpul BSL AR-15 Pistol Arm Brace


