Fusion, Pro-Series, Officers size, Mainspring Housing internals Kit. Comes with the internal pins, top plunger pin, bottom pin, top retaining pin. All Precision CNC machined from bar stock and heat-treated stainless parts. Also, includes standard 23 pound(US Gov Spec) Mainspring. All in one kit package.

• MSH Officers Stainless Internals Pin KIT

MSH Officers Stainless Internals Pin KITFusion