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Old 10-28-2021, 05:02 PM
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That’s great news on the AR! I guess I should of mentioned that they like to run wet. Remind me of the bolt lock issue? You shouldn’t have to shave anything to make it catch…?….

I’m glad the bag worked out for you. I ditched the bipod a year ago and never looked back. I find that the bag is more consistent for me to get back on target also for follow up shots.

I like to use the StelokPro app on my phone to get my scope adjustments at different distances. So far it’s been spot on. If it tells me I need 0.5 mils at 200 yds from my zero, it centers that shot in the 200 yds target every time (as long as I do my part). You can get the free version but the Pro gives you more flexibility and it’s a one time purchase (cheap too).

If you are zero’d at 100 and then shoot at 200 and you are hitting far left (without wind of course) then, something is off. You might have to true your scope reticle your your bore.


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Old 10-28-2021, 11:05 PM
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That’s great news on the AR! I guess I should of mentioned that they like to run wet. Remind me of the bolt lock issue? You shouldn’t have to shave anything to make it catch…?….

Here are the pics I've taken:


The first is of the Bolt Catch when not extended (i.e. charging handle not pulled back.




You can see that it doesn't fully cover the impression hole in the lower. I think that's what Mike was referring to when he said it's not properly oriented over the lower hole. Either that, or the spring is really weak.

Here's another view:




And another from the opposite side (sorry a bit out of focus):




If I open the lower and look at the inside, I see this:




And when I try to pull back the catch, I get this:




And, finally, from the other side:






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Originally Posted by Caleb View Post
I’m glad the bag worked out for you. I ditched the bipod a year ago and never looked back. I find that the bag is more consistent for me to get back on target also for follow up shots.

I still have my bipod I may get the device that lets me tighten it more, because it needs to be, but I'll keep the bag on the rear.


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I like to use the StelokPro app on my phone to get my scope adjustments at different distances. So far it’s been spot on. If it tells me I need 0.5 mils at 200 yds from my zero, it centers that shot in the 200 yds target every time (as long as I do my part). You can get the free version but the Pro gives you more flexibility and it’s a one time purchase (cheap too).

I'll look into it. Does it have a Kestrel hook up?


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If you are zero’d at 100 and then shoot at 200 and you are hitting far left (without wind of course) then, something is off. You might have to true your scope reticle your your bore.

It's zeroed at 100, but not yet "true." We'll be working on that during the Long Range 201 course. I'll take that after a bit of practice at 100 yds. I need to make my groups a lot tighter.





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Old 10-29-2021, 11:12 AM
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One other Update: I just did another test with an empty PMAG-30. This, having had comments about it being the "follower" of an empty mag that causes the Bolt catch to engage. I put in an empty mag and pulled the charging handle. Lo and behold, it locked into place! But the slightest little jolt of the rifle would cause it to unlock and the handle/BCG to go back into battery. I can pull the charging handle back and it will lock into place, as long as I don't jolt the rifle. I can even drop the mag and will stay locked back. But not for long, as the slightest little bump will cause it to close. I guess the reason why it wouldn't lock back after firing the last round in the mag is that ejection jolt. When it is locked back, I can push the bolt catch release and it will close, normally.

So, that helps, a little in terms of diagnosis and repair. Either the spring is not enough to keep the bolt catch extended out when the handle is back, or something is off that it can't get a full catch... only a partial one.

Thoughts? Thanks!
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Old 10-29-2021, 02:23 PM
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Here are three of mine….

1. Phase5 extended bolt release








2. Strike Industries extended bolt release








3. Standard parts kit bolt release







All of these hold the bolt back with and without the mag in place and a couple of smacks to the lower.


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Old 10-29-2021, 02:24 PM
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Mine don’t look much different than yours on the lower access spacing/gap. So I’m thinking it’s the spring. Are you sure you used the correct spring when you installed the lower parts?


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Old 10-29-2021, 11:11 PM
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Mine don’t look much different than yours on the lower access spacing/gap. So I’m thinking it’s the spring. Are you sure you used the correct spring when you installed the lower parts?


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No, I'm not sure of that. I've ordered a couple of Bolt catch replacement kits that have the appropriate spring, detent, and roll pin. As soon as I get those in, I'll pull out the old assembly, hopefully without damaging the lower. Ill have to lube it up with penetrating oil to loosen the old pin. Then I an pull it out.
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Old 10-30-2021, 04:00 PM
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Originally Posted by FfNJGTFO View Post
No, I'm not sure of that. I've ordered a couple of Bolt catch replacement kits that have the appropriate spring, detent, and roll pin. As soon as I get those in, I'll pull out the old assembly, hopefully without damaging the lower. Ill have to lube it up with penetrating oil to loosen the old pin. Then I an pull it out.

That’s a good start.


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Old 11-02-2021, 10:00 AM
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That’s a good start.


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What's your recommendation on removing the old bolt catch roll pin? I'll probably start with some penetrating oil and light taps. I just have to be real careful I don't damage the lower.
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Old 11-05-2021, 09:28 PM
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What's your recommendation on removing the old bolt catch roll pin? I'll probably start with some penetrating oil and light taps. I just have to be real careful I don't damage the lower.

Tape up the lower anywhere the punch or hammer may come in contact with. Use the proper sized punch and lightly tap it out from the muzzle towards the Butt end. Take your time and use oil. Should come out somewhat easily.


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Old 10-29-2021, 02:28 PM
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Yes, the StrelokPro app has a Kestrel connection/ compatibility.




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