Bolt Catch Pin

AR/M4 Beyond 5.56/.223
1

What’s better and why?

  1. One piece pin/screw

  2. Two piece pin & screw

Thanks.

2

Any top builder out there have an opinion?

3

Are you referring to this? http://www.brownells.com/rifle-parts/bolt-parts/bolt-catch-parts/bolt-catch-hardware/ar15a4-bolt-catch-pin-prod4885.aspx

No screw necessary. I’ve never seen a two piece. Then again I’m not a “top builder.”

4

Thanks, beginning to think I had the plague…

Changed out a bolt catch the other day. A “2 piece system” was installed. Consisted of a short pin (looked like drill rod) and a set screw to hold it in. Kind of baffled me at first, thought I had snapped a one-piece pin, but they were never connected. Couldn’t find out any info on a 2 piece job, so thought I’d ask here.

Thanks.

5

That makes more sense. I see what they did but I’ve not seen it myself. I’ve only seen something like this.

https://www.falkordefense.com/shop/parts-accessories/replacement-set-screw-ar15-ar308-2pk/

6

I haven’t been able to find any info about it, guess it’s not indicative of a good build.

7

If it ain’t broke don’t fix it is my motto. The pin has worked fine for 50 + years. A bolt catch isn’t something I go swapping and I’ve never had one fail even after 14,369 rounds through one Colt I have. I can’t say I’ve ever seen what you describe. I know some of the .308 ARs have a screw but never heard of a pin and a screw.

8

Nor I. I wonder if the builder ran out of the correct part and was just making do.

9

Not many parts are “standard” when it comes to a .308 chambered AR

10

I understand that, just never heard of this “fix”, especially in a new rifle. I can see it for a repair. Wonder if a properly sized pin will reduce the sloppy fit…