Valoin Barrel Nut Shim Spacers Fine Adjustment .004" Thick #4092

FieldSport AR Free Float Handguard Rail Barrel Nut Washer Shims -20 PC Pack. For 223/556

Umbrella Corporation AeroShell 33MS / 64 Gun Grease .5oz / Mil-Spec for Barrel Nut Thread

Aeroshell 33ms / MIL-G-21164D / MIL-SPEC Barrel Nut Thread Grease + 1/2oz can

Crush Washer for AR rifles, pack of 5 (Black Oxide, .308 7.62)

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

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

SING F LTD 10pcs Shims Washers for Free Float Rail Barrel Nut Stainless Steel 223/5.56

Mechforce - Variable Timing Crush Washers (for 1/2"-28 TPI Thread) Muzzle Device Alignment

Fixxxer Hollow End Stainless Steel Starter Punch Set