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Posted: 4/17/2016 11:24:08 AM EDT
[#1]
When teaching armorer courses, we have had a few rifles show with BAD type levers that were too loose, due to the bolt catch spring not having enough tension to handle the extra weight of bolting one onto the bolt catch, so the bolt catch spring was replaced with a new one (Stiffer one if you can find one) and that cured the problems the users were having. From trying to analyze what you have going on, could it be that the bolt catch is too loose on the front to back fit inside the lower receiver, is the top of the bolt catch rounded off where it isn't getting a good hold. If happening on and empty magazine then the magazine either has not enough spring tension on the follower to keep the bolt catch pushed up, or possibly the magazines are not not locking into the magazine catch firmly (something we have seen on polymer type magazines, where they have worn and rounded on the locking notch edges).
CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Posted: 4/17/2016 12:52:08 PM EDT
[#2]
+1 with what Sully said.
I also took the second twist out of my port door spring. I haven't had a single problem with mine. |
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Posted: 4/17/2016 1:54:33 PM EDT
[#3]
Bolt lock back is fine on empty mags, my issue is when I am inserting the next mag in, a light amount of jarring (or any extra movement with the rifle), the bolt will drive home before the mag is seated. What confuses me is that the plunger and spring would actually act against the bolt catch in this instance. I will try pulling one turn out of my ejection port door spring too. Thank you!
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Posted: 4/17/2016 5:17:19 PM EDT
[#4]
Quote HistoryQuoted:
my issue is when I am inserting the next mag in, a light amount of jarring (or any extra movement with the rifle), the bolt will drive home before the mag is seated. When this happens, are you sure the bolt is locking behind the bolt catch, meaning the bolt lugs are behind the bolt catch when the magazine follower pushes the bolt catch after the last round is fired, and not where the bolt catch is coming up in front of the bolt carrier but behind the bolt lugs? If the bolt catch is locking on the face of the bolt carrier and behind the bolt lugs, it cannot get a firm hold and will easily release the bolt carrier if the rifle is bumped or often shaken. If the bolt catch is coming up in front of the bolt carrier and behind the bolt lugs, then either the gun is short stroking due to lack of gas pressure or something may be blocking the bolt carrier so it cannot travel enough rearward. CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Posted: 4/18/2016 11:09:06 AM EDT
[#5]
There have too many reports of issues with these. At one point I was ready to start cutting receivers to fit them, now I'm glad I didn't.
IIRC, there have reports of them galling after time. 
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Posted: 4/18/2016 11:27:55 AM EDT
[#6]
Quote HistoryQuoted:
There have too many reports of issues with these. At one point I was ready to start cutting receivers to fit them, now I'm glad I didn't. IIRC, there have reports of them galling after time. Yep...I regret cutting one of mine for this thing. |
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Posted: 4/18/2016 4:10:53 PM EDT
[#7]
Mine was gifted to me. Kind of obligated. Installed it in a lower receiver that cost less then the PDQ and gave it a shot. What the hell right? Reduced the port door spring tension right from the install as it seemed like it might cause an issue. So far have not had any. I only own the one. Might have to pull it out now and check for galling... then again, it's in a toy/plinker not a work gun so not too worried.
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Posted: 5/24/2016 8:16:48 AM EDT
[#8]
UPDATE!!!!!!!!!!!!!!!!! After some inspection of my PDQ, I had noticed a good amount of wear/galling on the top edge of the sear on the PDQ (the edge that holds the bolt). So much so that I am led to believe, was the sole source of my problem with the bolt not reliably holding back. I contacted Teal Blue Bravo via email asking if they guaranteed their product, as I did not see any indication of it on the packaging. I had explained what had taken place, and asked what I could do to get the ball rolling. Within an hour I received a reply asking for my address, saying he would send me a replacement FREE OF CHARGE, and within 3 days received my new TBB PDQ ambi bolt catch. Problem solved. I am thrilled with the customer service with this company, and would recommend them to anyone who is looking for an ambi bolt catch/release option. Thank you all for your input on this.
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Posted: 5/24/2016 10:54:41 AM EDT
[#9]
Quote HistoryQuoted:
UPDATE!!!!!!!!!!!!!!!!! After some inspection of my PDQ, I had noticed a good amount of wear/galling on the top edge of the sear on the PDQ (the edge that holds the bolt). So much so that I am led to believe, was the sole source of my problem with the bolt not reliably holding back. I contacted Teal Blue Bravo via email asking if they guaranteed their product, as I did not see any indication of it on the packaging. I had explained what had taken place, and asked what I could do to get the ball rolling. Within an hour I received a reply asking for my address, saying he would send me a replacement FREE OF CHARGE, and within 3 days received my new TBB PDQ ambi bolt catch. Problem solved. I am thrilled with the customer service with this company, and would recommend them to anyone who is looking for an ambi bolt catch/release option. Thank you all for your input on this. Great customer service. BUT, there is no way in hell I'd use one until they improve their heat treating. |
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Posted: 6/8/2016 10:31:17 AM EDT
[#10]
Quote HistoryQuoted:
Great customer service. BUT, there is no way in hell I'd use one until they improve their heat treating. Quote HistoryQuoted:
Quoted:
UPDATE!!!!!!!!!!!!!!!!! After some inspection of my PDQ, I had noticed a good amount of wear/galling on the top edge of the sear on the PDQ (the edge that holds the bolt). So much so that I am led to believe, was the sole source of my problem with the bolt not reliably holding back. I contacted Teal Blue Bravo via email asking if they guaranteed their product, as I did not see any indication of it on the packaging. I had explained what had taken place, and asked what I could do to get the ball rolling. Within an hour I received a reply asking for my address, saying he would send me a replacement FREE OF CHARGE, and within 3 days received my new TBB PDQ ambi bolt catch. Problem solved. I am thrilled with the customer service with this company, and would recommend them to anyone who is looking for an ambi bolt catch/release option. Thank you all for your input on this. Great customer service. BUT, there is no way in hell I'd use one until they improve their heat treating. I agree improvements should be made, That's just good R&D. I'm not sure if improvements have been made or will be made though. I will know after a few thousand rounds. |
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