Uncle Mikes magazine cap swivel set has a factory magazine cap with the swivel base already installed. Just unscrew the factory magazine cap and replace it with the new cap. For the buttstock, a 3/4″ wood screw swivel base is included, along with two super swivels with Tri-Lock.
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American Precision Arms G2M1230N Gen 2 Micro Bastard Self Timing Brake Black Nitride Stainless Steel with 1/2″-28 tpi Threads, 1.86″ OAL, & .750″ Diameter for 30 Cal AR-Platform & Hunting Rifles
$145.00
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