Grey Birch MFG 10/22 Precision Bolt 22 LR Polished Nitride

When they designed their 10/22A(R) pattern bolt assembly, they did so with three objectives. The first was to tighten and control head space to .002, which significantly improves accuracy and consistency of accuracy. The second was to improve the external coating, resulting in increased reliability and extended bolt life by resisting corrosion. And last but not least, making assembly and disassembly easier. The Polished Nitride Finish Makes Cleaning Easy. Specifications: Bolt Material: Steel Finish: Polished Nitride Firing Pin: 17-4 PH Spring and Rod: 17-4 PH Compatible with most 10/22A(R) pattern receivers without modification