FieldSport® 1/2x28 Thread Crush Washer Replacement Jam Nut Muzzle Brake Locking and Position Adjustement, All Steel, Black Steel, 5PC Pack

TACFUN 1/2" x28 Thread Steel Crush Washer (Pack of 10) for .223

1/2x28 (1/2-28) Steel Black Oxide Jam Nut - Knurled Outside Diameter

US-DEALS 10 Pieces Steel Crush Washer 300 7.62x39 308 6.8 5/8x24 Barrel NATO

1/2" x 28 Barrel Shim Muzzle Brake Alignment Shim Kit 5.56 223 indexing

Thread Protector 1/2"x28 for .22LR, .223 & 5.56mm 9mm (2 PACK) Made in USA

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S-Union New 1/2"-28 Gunsmithing Tap and Die Set(1/2" x 28) 22LR 223 5.56 9mm

Channellock 806SW Xtra Slim Jaw 6-Inch Adjustable Wrench | 0.94-Inch Jaw Opening | Precise Jaw Design Grip in Tight Spaces | Measurement Scales for Easy Sizing of Diameters