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Aero Precision M4E1 Threaded Bolt Catch Pin
$5.00 $4.99
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Easy, No Punch, No Scratch!

by Ugly Driver, Verified Owner from FL, United States Written on October 22, 2025
So much easier! If only I had known, I'd have bought uppers that used this instead of the others.
Would recommend: Yes
Was it helpful to you? Yes | No

It works so far

by Khill951, Verified Owner from CA, United States Written on February 9, 2025
It worked with my Spikes Tactical Rare Crusader lower receiver. It went it easily and tightened up, so I believe the thread pitch was correct.. The pin was a little long, so I just ground it down about a 1/16”.
Pros:
  • good quality
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

M4E1 Threaded Bolt Catch

by johnchip, Verified Owner from CT, United States Written on January 21, 2025
I bought the Awro Precision M4E1 Threaded Bolt Catch because I have a few M4E1 lowers and I think it is always a good idea to have extra parts for them. I stripped one by accident and having an extra in my spare parts box was a life saver.
Would recommend: Yes
Was it helpful to you? Yes | No

billet receiver

by Brandon Watson, Verified Owner from IA, United States Written on December 2, 2024
I wasn't aware that billet lowers require a different parts kit because of the threaded bolt catch pin ! This is a perfect fit !
Would recommend: Yes
Was it helpful to you? Yes | No

Threaded Bolt Catch

by Brendan Carlos, Verified Owner from NJ, United States Written on October 30, 2024
Okay so this is a strange one. I'm not a huge fan of the threaded bolt catch. I had it walk out on me. I think the OG roll pin was more secure. That being said add some blue or red lock tight depending on your confidence and it'll never walk out. Product gets 5 stars because it works as designed. However buyer beware these things need some extra security.
Pros:
  • Easy Insallation
Cons:
  • Falls out
Would recommend: Yes
Was it helpful to you? Yes | No

Replacment pins

by Odus B, Verified Owner from TN, United States Written on April 4, 2024
Works perfectly in M4E1 & M5 Aero precision lowers.
Would recommend: Yes
Was it helpful to you? Yes | No
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