2 Replacement Shims for timing the AR-10 308 M38M Series Handguard Barrel Nuts.

2 Replacement Shims for timing the AR-10 308 M38M Series Handguard Barrel Nuts.  SKU: BNS02

2 Replacement shims for timing our Presma Series AR-10 308 M38M Free Float handguard barrel nuts .  This is for the barrel nut set up that needs to be timed with shims (not for the non timing type set ups or for the Slim Series handguards).