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AR-15 M4 Six Position Buffer Tube Kit -Mil-Spec w/ AR-15 Sound Mitigation Buffer
Product Code: SM-KIT
This Mil-Spec buffer tube kit includes an end plate castle nut aluminum carbine buffer tube buffer and buffer tube spring. The Buffer Tube is constructed of 6061 T6 Aluminum and is durable and weather-resistant. The Gen3 Sound Mitigation Buffer SMB Is A Single Stage Captured Drop-In Replacement for Your Standard Buffer and Spring.