Help Request: Springfield TRP Full Rail Firing Pin Issue

[RipTownTech]

I have a Springfield 1911 TRP Operator, Full Rail, .45 ACP.

I did a full disassembly and cleaning. After reassembly, the firing pin will not return to the ready position after a full cycle test.

I discovered this during the cycle test I ran after reassembly, as the Firing Pin Stop slid out of the slide during the racking motion.

I removed the slide and did an inspection. The firing pin remained in the fire/forward position, the spring did not return it to ready.

However, the spring seems to work as when I manually pushed it back into the bolt, it reset.

Any idea on what the issue may be?

 

[ZeroFoxGiven]

Are you saying the firing pin tip gets stuck in the slides firing pin hole?

 

[Experimentalist]

Check the firing pin return spring.

They often have different diameters at the ends. Put the small end against the firing pin interface, and the large end against the slide.

I have a Wilson Combat CQB that once in a while had light primer strikes. The return spring orientation turned out to be the issue.

 

[john323]

Debris in the firing pin Channel. Firing pin spring installed backwards. Check firing pin for any burrs.

 

[willssmithing]

I have a Springfield 1911 TRP Operator, Full Rail, .45 ACP.

I did a full disassembly and cleaning. After reassembly, the firing pin will not return to the ready position after a full cycle test.

I discovered this during the cycle test I ran after reassembly, as the Firing Pin Stop slid out of the slide during the racking motion.

I removed the slide and did an inspection. The firing pin remained in the fire/forward position, the spring did not return it to ready.

However, the spring seems to work as when I manually pushed it back into the bolt, it reset.

Any idea on what the issue may be?

Bring it by and we'll take a look

 

[RipTownTech]

Are you saying the firing pin tip gets stuck in the slides firing pin hole?

Yes. Although I am not certain if “stuck” is the right word. It does not return to the ready position after being dry fired, it remains forward in the hole. It releases and springs back to the ready position with slight pressure against the pin.

 

[RipTownTech]

Debris in the firing pin Channel. Firing pin spring installed backwards. Check firing pin for any burrs.

I don’t think it is debris, as the slide was completely stripped, ran through a sonic tank, wiped down and blown out. I am beginning to think, based on this thread—the spring is backwards.

 

[ZeroFoxGiven]

Also check for machine burs happens sometimes.