2 Replacement Shims for timing the AR-15 MARM Series Handguard Barrel Nuts. SKU: BNS01
2 Replacement shims for timing our Presma Series AR-15 MARM 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 or Super Slim Series handguards).
The 2 shims are free shipping if ordered by themselves. They ship regular mail in an envelope.