This Custom SSI Spring is for box fed shotguns.
-designed for 26 PLUS capacity range.
-custom fit SSI spring coupler included.
-fits all AK and AR style followers and magazines.
-using tried and true ASTM A228-18 Music Wire
Tested Magazines and shotguns
AK: Vepr 12, KL, KS, Saiga, Elite, SMG and Surefire Mags
AR: VR60, VR60plus, VR80, VRBP100, VRPA40, Typhoon
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Spring
Mag runs after tuning as stated. This is the only reliable way to get 25+ rds. A drum mag will always fail.
