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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Phase 5 Weapon Systems FATMAN556 FATman Hex Brake Black Parkerized Steel with 1/2″-28 tpi Threads & 3″ OAL for 223 Rem, 5.56x45mm NATO AR-Platform
$120.00
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