The Angstadt Arms 9mm buffer assembly kit is compatible with both GLOCK and Colt style 9mm AR-15s. Weighing 5.4oz" this buffer is tough enough to withstand the abuse of blowback 9mm firearms and features a dedicated buffer spacer to limit overtravel of your 9mm bolt carrier. Includes 9mm buffer, spacer and carbine buffer spring.

Features :

• Complete drop-in 9mm AR-15 buffer kit
• 5.4oz buffer weight
• Includes buffer, buffer spacer and carbine spring