AT3 Tactical A2 Retro AR-15 Lower Build Kit – M16A2-Style Rifle Stock Setup
Features
- Includes the lower parts needed to complete a stripped AR-15 lower receiver for an M16A2-inspired rifle build
- UTG A2 fixed rifle stock assembly gives the lower the full-length profile used on classic A2-style rifles
- AT3 A2 pistol grip keeps the build closer to a traditional service-rifle layout than modern ergonomic grips
- Includes mil-spec lower controls, fire control springs and pins, trigger guard, and receiver small parts
- Uses a rifle-length buffer system instead of a carbine buffer tube assembly
The AT3 Tactical A2 Retro AR-15 Lower Build Kit is built for finishing a stripped lower on an M16A2-style rifle project. It combines standard AR-15 lower controls with an A2 fixed rifle stock assembly and A2 pistol grip, giving builders the lower-end parts needed for a classic full-length retro rifle without piecing together the stock, grip, buffer system, and small parts separately.
Note: This kit is not assembled. Stripped lower receiver is not included.
Specifications
- Brand: AT3 Tactical
- Model: A2 Retro AR-15 Lower Build Kit
- MPN: AT3-A2-RETRO-AR15-LWRBK
- Platform: AR-15
- Build Style: Retro M16A2-inspired rifle lower
- Control Type: Mil-Spec
- Stock: UTG A2 Fixed AR-15 Rifle Stock Assembly
- Grip: AT3 AR-15 A2 Mil-Spec Pistol Grip
- Trigger Guard: STNGR Mil-Spec 7075 Trigger Guard Assembly
- Buffer System: Rifle buffer assembly
- 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 UTG A2 Fixed AR-15 Rifle Stock Assembly – Buffer, Tube, Springs, and Hardware Included
- 1x AT3 AR-15 A2 Mil-Spec Pistol Grip


