Matador Arms Mat-9K / Brownells BRN-9 Upper

[sniperdoc]

T

I don't have a lot of experience with titanium AR firing pins. Never had one before. Matador Arms sent me a new one, same as the one that came with the upper although the length of other pins I measured in other guns. In studying the properties of titanium compared to the tool steel firing pins, I am not quite sold on the titanium firing pins. I put a tool steel firing pin in I bought from PSA. Lets see how it holds up.

Titanium parts only make sense if you are a very good, and serious, competition shooter.
They are a little lighter, which can help shave off a bit of time Match, but Titanium will eventually cause galling, which slows those parts down, and, as you've experienced, bending, etc
Unless you are willing to spend a lot of extra $, and are making a living as a top-tier Competitor who really benefits from the few thousandths of a seconds, and are willing to replace said parts with alarming regularity, just use steel.

 

[CoffeeFreak]

T

Titanium parts only make sense if you are a very good, and serious, competition shooter.
They are a little lighter, which can help shave off a bit of time Match, but Titanium will eventually cause galling, which slows those parts down, and, as you've experienced, bending, etc
Unless you are willing to spend a lot of extra $, and are making a living as a top-tier Competitor who really benefits from the few thousandths of a seconds, and are willing to replace said parts with alarming regularity, just use steel.

I agree with the entire comment!

 

[CoffeeFreak]

I figured it out. It works reliably now. Next on my to do list is CeraKote my upper and lower a burnt bronze and pick an optic. Thanks for your help.

Post a picture when you get that done please? We'd love to see it.

 

[mak91]

Purpose of a titanium firing pin is to reduce the risk of a slam fire with soft primers. AR DI style 5.56x45 bolt systems do not have a firing pin spring and was designed for hard military primers, the 9mm bolts do or should have a spring. Where the titanium firing pins come in handy is with AR DI alternate calibers like 45acp or wildcats that use 5.56x45 brass and pistol primers.

 

[CoffeeFreak]

Purpose of a titanium firing pin is to reduce the risk of a slam fire with soft primers. AR DI style 5.56x45 bolt systems do not have a firing pin spring and was designed for hard military primers, the 9mm bolts do or should have a spring. Where the titanium firing pins come in handy is with AR DI alternate calibers like 45acp or wildcats that use 5.56x45 brass and pistol primers.

Thanks for the explanation.

 

[MPXGuy]

My firing pin is bending. I agree the titanium firing pin is no bueno for the 9MM AR.