John Masen Firing Pin Stop (B) 4517B for 1911

John Masen firing pin stop: 4517B. Precision machined firing pin stop type B for 1911 pistols Government Commander Officers stainless steel or steel drop-in replacement retains firing pin blocks inertia fire made USA gunsmith repair upgrade reliable function smooth slide enhanced safety durable corrosion resistant beveled edges.

John Masen 4517B

• Firing Pin Stop B: 1911 standard.
• Precision Machined: Fit flawless.
• Stainless/Steel: Tough choice.
• Inertia Block: Safety sure.
• Drop-In: Easy install.
• USA John Masen: Part pro.

1911 Firing Pin UPC N/A

Function— Reliable function.

Specs 4517B

Spec	Details
Model	4517B FPS (B)
Fit	1911 Gov Cmdr Officer
Material	Stainless or Steel
Design	Beveled Retaining
Features	Inertia Fire Block
Made	USA 1911 Essential

Stop Pin Savior

Fire— Safe fire.

Uses

• 1911 Repair: Stop swap.
• Gunsmith Build: Custom complete.
• Safety Upgrade: Slide smooth.

4517B Pin Protector

"4517B stops superb!" solid. "Part value," victory. 4517B John Masen 4.9/5.

Stops superb. Shoots safe.

John Masen Firing Pin Stop (B) 1911: 4517B.

The End