Reviews & Ratings for Guntec USA AR .308 Bolt Catch Screw

Guntec USA AR .308 Bolt Catch Screw

$4.95

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Most Helpful Positive Review Got a Matrix Aerospace AR10 that needs a Bolt Catch Screw? Here it is!

The Matrix Aerospace AR 10 is a Cadillac AR and the hurt on your wallet will confirm that if you buy one new. I got a deal at a pawn shop, but after the first trip to the range, it resulted in the bolt catch screw, spring and plunger coming loose and disappearing where only the great Kreskin or a Magic 8 Ball knows. Don't count on the original manufacturer lifting a finger to help you. I called, called again, sent emails and no one in their organization would lift a finger to help me find replacement parts. Wish I had an uncle on a Senate appropriations committee, but no luck there. The proble...
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it's a threaded retaining pin

by Juan23, Verified Owner from PA, United States Written on January 26, 2026

I'm not sure what the thread pattern is, but i imagine it will work with most Ar10 lowers

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its a threaded retaining pin

by Juan23, Verified Owner from PA, United States Written on January 26, 2026

It fit my lower well enough. I'm not sure what what the thread pitch is, but i imagine it will work on most lower.

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Bolt catch screw

by Elkmaster, Verified Owner from IN, United States Written on April 22, 2025

These are heat treated and very strong.They do not round out when you try to remove them after putting locktite on them

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Guntec USA AR .308 Bolt Catch Screw

by Brent Pratt, from IN, United States Written on March 12, 2024

Fast shipping, Perfect fit. Will definitely use Guntec again, and always use Optics Planet.

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Fits Aero M4E1 Lowers

by Rick, Verified Owner from TX, United States Written on January 6, 2023

I bought this for an Aero Precision M5 lower, and was pleasantly surprised to find that it also fits Aero Precision M4E1 lowers. It looks much better than the stainless steel screw that comes standard in the Aero Precision lowers.

2 of 2 found the following review helpful.

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Replacement .308 Bolt Catch Screw

by MonsterR6R, Verified Owner from CA, United States Written on July 1, 2021

I purchased this Bolt Catch Screw to replace the factory one that came with my Aero M5 lower. The factory one was easily stripped when i tried to tighten it. This screw is the exact fit just black in color.

Pros:

Good material

Cons:

None

Best Used for:

replacement

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great part

by potsy, from WI, United States Written on March 21, 2021

Just as described part works great op did it again � buy two as you may drop the first one and not find it. ask me how I know. couldn't believe how fast it came. Guntec makes some solid parts. Now this is just a filler sentence as they require a lot of words for a small part description. Hope this does it!

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.308 Bolt Catch Screw

by Baldy06, Verified Owner from ME, United States Written on August 25, 2016

This could be a little longer perhaps. But it allows the catch to WORK as it's supposed to. (The pin that came with the lower parts kit was far too loose.) The hole DID require enlarging a bit of course.

Pros:

None

Cons:

end not chamfered, a bit short

0 of 1 found the following review helpful.

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Reviews & Ratings for Guntec USA AR .308 Bolt Catch Screw — 9 reviews — Page 1