5.56x45mm NATO Buffer Tubes

WMD Guns Carbine Buffer Tube Nickel Nib-X for AR-15/M16

Odin Works Close Quarters Rifle Stock: CQ-S - Coyote Brown

M4e1 Pro Complete Lower Receiver W/ Moe Grip & Sl Carbine Stock - M4e1 Pro Comp Lower W/Moe Grip & Sl Carbine Stock Black

Sons of Liberty Gun Works SOLGW M4 Stripes Rollmark Lower Half w/A5 Buffer System; No Stock M4LOWER-A5-NS-ST

BUSHMASTER Minimalist-SD AR-15 MFT Stock

NOVESKE Chainsaw N4 Complete Lower Receiver + H1 Buffer & B5 Bravo Stock | Black

Kexuan Aluminum Receiver End Plate w/Dual Sling Clip Type Adapters for .223/5.56/.308 Buffer Tubes Black

Presma Aluminum Receiver End Plate w/ 1in Sling Adapter for .223/5.56/.308 Buffer Tubes Black

Aero Precision M4E1 Pistol Complete Lower Receiver w/ A2 Grip & SBA3 Brace - FDE/FDE

Harrington & Richardson Complete Gray XM177E2 Lower, 2 Position Tube, Authentic Aluminum Stock

PSA Sabre-15 Lower Build Kit with A1 Stock and Sabre Grip, Black

Surefire Optimized BCG w/ Buffer & Spring

Anderson Mil-Spec Lower Build Kit - Stainless (Black)

Anderson Mil-Spec Lower Build Kit - Stainless (Silver)

Ar-15 Gi Lower Parts Kit With Adjustable Stock Assembly - Ar15 Gi Lpk W/Adjustable Stock Assembly

Anderson No Logo Complete Lower Receiver w/ SBA3 Brace

Anderson Mil-Spec Lower Build Kit - Stainless (Black)

Anderson Mil-Spec Lower Build Kit - Stainless (Silver)

SB Tactical HBPDW AR-15 Pistol Brace 5.56x45mm NATO

Armaspec Gen 4 SRS C Stealth AR-15 Carbine Recoil Spring Assembly

Armaspec Gen 3 SMB H3 Sound Mitigation AR-15 Carbine Buffer Kit

KynSHOT Hydraulic AR-15 Rifle Recoil Buffer 5.875"

KynSHOT Hydraulic AR-15 Carbine Recoil Buffer 3.25"

Armaspec Gen 4 SRS H2 Stealth AR-15 Carbine Recoil Spring Assembly