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5.56 Springs (4), Pins (10), 223/5.56 ...
Precision CNC Machining By AP-MFG.
Made in U.S.A
Stainless Steel Pins & springs
Mil-Spec Tolerance
CNC Machined, Mil Spec, Hardened and plated, Includes all Parts Pictured, Made in the USA by Xtreme Precision LLC, Click on Xtreme Precision LLC to view our other 5.56 parts sets