Guide Rod & Recoil Spring Assembly for Glock 20, 20SF, 21, 21SF, 40, 41 (Gen 1-3) by Brass Stacker™
Select Recoil Spring Weight 17 Lbs (factory)
Quality CNC machined Recoil Spring Assembly for Glock™ Full Frame pistols G20 G20SF G21 G21SF G40 G41
Completely assembled "drop-in" unit includes ISMI™ heat treated, shot peened and stress relieved premium chrome silicon springs. Offered in either Black or Polished exposed face. All guide rods are stainless steel and have a 100% lifetime warranty. Recoil springs have a one year replacement warranty. Both are made in America.
Single Stage RSA for Full Frame Gen 1, 2 & 3 pistols feature a flat wire recoil spring, modified button head cap screw with black nylon washer. Black screws are hardened alloy steel and polished screws are stainless steel.
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