Wolff Gunsprings AR-15 Carbine Extra Power Recoil Spring

Wolff's extra power carbine action spring for AR-15 carbines with a carbine length buffer tube: M4 and CAR-15 pattern guns, plus the 9mm AR style SMG carbine per Wolff. It sits behind the buffer and returns the bolt carrier to battery. This is the spring only; no buffer is included.

The extra power rating runs about 15 percent over stock per Wolff, to help the carrier close positively. Rifle length buffer tubes take Wolff's separate rifle action spring.