A-1 Style 7.62 .308 5/8-24 TPI, 2.125" Extended L., NY Barrel Extender Muzzle Device w/ 6 mock slots, Closed-End (.375 exit).

 (Photos show NY A-2 with closed-end exit and mock slots [3 on Left--2 in back, 1 forward--] compared to Standard A-2 [3 on Right] ) 

A-1 Style NY Slots LOOK-ALIKE Barrel Extender Muzzle Device;

2.125" EXTENDED LENGTH;

A-1 Style .308 5/8-24 TPI ; 7.62

STATES LEGAL smaller diameter .375 exit hole, same ID all the way through bore;

6 mock (shallow) slots; (looks just like an A-1 only NO side holes into the bore!  Plus .375" or 3/8" longer.)

NY  Barrel Extender Muzzle Device with mock (shallow) slots that do not break through into bore.

Black oxide finish

Pinhole between wrench flats to pin extension to barrel. 

Heat-treated and Black-oxide coating.