We created the NLA Sig Barrel Adapter to complement our Sig 9mm Flash Hiders and Comps. Ensure a tight fit of your muzzle device with the adapter.
Sig Sauer added a tapered end to their MPX and MCX barrels. This prevents the crush washer from seating correctly when installing a standard muzzle device. The taper can also prevent proper installation of a suppressor, which could create damage to your suppressor or a baffle strike.
Our NLA Sig Barrel Adapter fits on the end of the barrel (inner tapered end faces the barrel) providing a flat surface for the crush washer to properly function. This eliminates the need for indexing and/or applying a thread lock product to hold the muzzle device in place.
*NOTE: We include the adapter with our 9mm muzzle devices threaded for Sig barrels.