You will need a 9mm magazine for this conversion barrel to install into your 40 S&W or 357 SIG firearm. Depending on 9mm ammo used you may need a lighter recoil spring. We can supply both if need be.
Additional information
Weight
24.0 oz
Semi Fit/Match Target
Semi Fit (will require minor fitting), Match Target (will require machining of the barrel to fit the firearm)
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