M1 Carbine Muzzle Brakes, New (Made in Spain)

Aftermarket (Spain) M1 Carbine Muzzle Brakes. This is an exact clone of the USGI clamp-on device, with wing nut.  They are stamped: “CHECK, RECOIL SPAIN” gray Parkerized, brand new, with just a bit of handling/shipment wear. These are new and have never been on a gun. These have been out of production in Spain for more than 20 years.