Any Category Parts Lower Parts Buffer Springs Buffer Tubes Buffers End Plates Lower Build Kits Lower Parts Kits Other Lower Parts Safety Selectors Trigger Guards Triggers
Any Manufacturer 2A Armament ALG Defense Aero Precision Anderson Mfg Armalite B5 Systems Bravo Co. Mfg CMC Triggers CMMG DS Arms Daniel Defense Elftmann Tactical Franklin Armory Geissele Guntec USA GuntecUSA Hiperfire JP Enterprises KAK KNS Precision Inc Knights Armament Company LBE Unlimited LWRC LaRue Tactical Law Tactical Lewis Machine & Tool Luth-AR Magpul Odin Works POF USA Palmetto State Armory Phase 5 Radian Weapons Radical Firearms Rise Armament SLR Rifleworks Seekins Precision Spikes Tactical Sprinco USA Strike Industries Sylvan Arms Timber Creek Timney Triggers TriggerTech Troy VLTOR WMD Guns
Any Caliber .223 5.56 NATO 9mm 9x19mm
Any Model .154 Diameter 2 Stage 556 A2 Buffer Tube AR AR 308 AR-15 AR15 AR15/M16 Adaptable Ambidextrous B.A.D. Lever BCMGUNFIGHTER Carbine Castle Nut Curved Duty End Plate Sling Adapter Enhanced Enhanced Anti-tilt Enhanced Buffer Tube Enhanced Duty Trigger Enhanced Trigger Guard Extended Hex-2 Impact JPSCS2-15 LE145 Tactical Trigger M5 MK2 Receiver Extension MOD 0 MOE Mil-Spec Buffer Tube Nickel Oversized Magazine Release PDI PMR PNT (Polished QD QD Mount RAVE SHOCKWAVE ST-9X ST-T1 ST-T2 ST-T3 Single Stage Flat Sloped Quick Disconnect Standard Super 3 Gun Super Dynamic Combat Super Semi-Automatic Super Sporting Trigger Talon Teflon) Vertex Trigger Winter
Any Barrel Length 10.5" 16" 7.5" 8.5"
Any Color/Finish Anodized Anodized Blue Anodized Orange Anodized Red Azure/Black Black Black Anodize Black Anodized Black Phosphate Blue Flat Dark Earth Gold Gray Manganese Phosphate Coated 4140 Steel Matte Nickel Nickel Boron Nitride OD Green Purple Anodized Red Stainless
Any Platform AK AR AR-10 AR-15 AR-9 AR308 M5