jlo86cj Posted January 29, 2018 Share Posted January 29, 2018 Unless I'm practicing reloads, I dry fire with the bolt locked back. The safety functions and the trigger has some slight movement. Link to comment
gerritm Posted January 29, 2018 Share Posted January 29, 2018 My broken FP was way more random. Went on for 3 matches. I would get this random FTE, look in the ejection port and the the brass case would be stuck on the end of the bolt. Have to flick it off with my finger. Happened so seldom never thought about broken FP. Finally after about 4 or 5 times it happened it just quit. That is when I found it. Thought no problem I have a spare complete BCG in my range bag. Replacing a Taccom bolt/FP with my spare Spinta BCG will not work with a CMC trigger. Tim did not have any replacment FP's in stock so he recommended a Wilson Combat. He did send a new redesigned FP in about a week at no charge. I guess make sure your spare parts are compatible. gerritm Link to comment
L9X25 Posted January 29, 2018 Share Posted January 29, 2018 Dryfire was not a factor with my failure, I dont drop the hammer during practice. Also, because of the design on these pins/bolts, they are not like a 1911 system where the firing pin is stopped by the primer. My PCC firing pins only protrude from the bolt a very small amount before they bottom out, and I would guess that their travel is always stopped by impacting the bolt, not by impact with the primer. In that way, you are basically doing the same "damage" as dryfiring every time you pull the trigger. Link to comment
Aircooled6racer Posted January 29, 2018 Share Posted January 29, 2018 Hello: Firing pins seem to be the weak link on the PCC's even the Sig MPX. Some seem to last a very long time and others not so much. You could use your broken one for dry fire and then instal the good one for the match. Carry a spare or 3 and you should be fine. Thanks, Eric Link to comment
stick Posted January 29, 2018 Share Posted January 29, 2018 1 hour ago, Aircooled6racer said: Hello: Firing pins seem to be the weak link on the PCC's even the Sig MPX. Some seem to last a very long time and others not so much. You could use your broken one for dry fire and then instal the good one for the match. Carry a spare or 3 and you should be fine. Thanks, Eric I agree. I had two new springs and 2 new firing pins. Since I just replaced a broken spring, it left me with one. so naturally, I ordered two more. I'm still thinking i'll change the pin and spring for matches and back to the one now for dryfire. I have a few thousand rounds on it and the spring is new, so it's only a matter of time before this pin breaks. I'm not being negative, it's reality Link to comment
Flatland Shooter Posted January 29, 2018 Share Posted January 29, 2018 18 hours ago, L9X25 said: PUT A SPARE FIRING PIN IN YOUR SHOOTING BAG. Put the spare firing pin in your bag after you have put it in a bolt and fired a few rounds. You know, just to make sure it will work when you need it. Same with spare springs. Link to comment
HoMiE Posted January 30, 2018 Share Posted January 30, 2018 Is there a compatibility chart of what firing pin will work with what bolt? Like, does a CMMG firing pin work with QC10 bolt, etc? Link to comment
balmo Posted January 30, 2018 Share Posted January 30, 2018 I have a whole spare bolt all together just in case. To my understanding (and correct me if I'm wrong) any ar15 firing pin and retaining pin should work with any ar9 bolt minus JP's bolt? Link to comment
JAFO Posted January 30, 2018 Share Posted January 30, 2018 1 minute ago, balmo said: I have a whole spare bolt all together just in case. To my understanding (and correct me if I'm wrong) any ar15 firing pin and retaining pin should work with any ar9 bolt minus JP's bolt? I'm not sure about that. I have a New Frontier Modular BCG. They don't list an extractor on their website for that one because they told me it was the same as a standard M16 extractor. However, they DO list a replacement firing pin that is described as fitting both their standard AR-9 bolt and the Modular bolt, and the rear of it looks different from a standard AR15 pin. Link to comment
yellowthunder Posted February 9, 2018 Share Posted February 9, 2018 In terms of firing pins, I have had good luck so far with the CMMG stainless. Still, FPs are expendable in this firearm and I always keep a couple extra springs and firing pins. I had good luck with a broken FP continuing to function when it broke in the middle. I've seen the pins break in the middle and at the back. When they break at the back it's a catastrophic failure immediately. I'd like to pick up a QC10 bolt and firing pin as the reports of longevity are very good for the FPs. Link to comment
Neomet Posted February 9, 2018 Share Posted February 9, 2018 Just a random thought here, and I am sure there are a multitude of causes, but those of us with Hiperfires set at the lightest trigger weights are not doing our FPs any favors. The hammer fall energy with that combination is around 20% heavier than a stock AR trigger. Just sayin'..... Link to comment
L9X25 Posted February 9, 2018 Share Posted February 9, 2018 15 minutes ago, Neomet said: Just a random thought here, and I am sure there are a multitude of causes, but those of us with Hiperfires set at the lightest trigger weights are not doing our FPs any favors. The hammer fall energy with that combination is around 20% heavier than a stock AR trigger. Just sayin'..... I was 100% is agreement with the above, then I had a failure at less than 2,000 rounds with my JP trigger and reduced power hammer spring. It hits like a wet noodle and I did not dryfire it. Link to comment
Norther Posted February 9, 2018 Share Posted February 9, 2018 I’m curious what “Top Product A” is... Link to comment
MikieM Posted February 9, 2018 Author Share Posted February 9, 2018 I would rather give up the occasional FP failure for the positive ignition, and lighter pull, afforded me by the HiperFire trigger. Just not in the middle of a stage, of course. Link to comment
Flatland Shooter Posted February 9, 2018 Share Posted February 9, 2018 With my next trip to the range I will have over 10K rounds through my original AR-9. From birth it has had a Hiperfire 24C with heavy springs (light trigger pull) and I'm still on the original firing pin and spring. I know I should change them out but what the heck. Wait until it fails. I have additional AR-9's all with Hiperfire triggers with not so many rounds through them but so far no broken firing pins or springs. I always carry a spare complete bolt in my range bag that has been tested to assure it will function properly. I also have a bolt at the house that is designated for "dry fire only". I'm sure if I took it to the range it would fire just fine but that's not its job. Maybe just luck but I satisfied. Link to comment
Neomet Posted February 9, 2018 Share Posted February 9, 2018 Yeah, I still run the light trigger pull Hiperfires and between my two friends with JP reduced weight triggers they have broken 5 firing pins (pretty high round count guns). Link to comment
muncie21 Posted February 10, 2018 Share Posted February 10, 2018 For those of us that have the PSA 'hybrid' 9mm bolt, where can extra firing pins and springs be purchased? Also, not sure how many different manufacturers PSA sources their bolts from, so perhaps the hybrid 9mm may come from multiple manufacturers, each having unique components.... Link to comment
Flatland Shooter Posted February 10, 2018 Share Posted February 10, 2018 The CMMG pins fit in my PSA "Hybrid" bolts. I have several on standby. Link to comment
stick Posted February 10, 2018 Share Posted February 10, 2018 12 minutes ago, Flatland Shooter said: The CMMG pins fit in my PSA "Hybrid" bolts. I have several on standby. This!!! and Optics planet has them cheaper than CMMG. I carry 2 pins and three springs. Link to comment
noexcuses Posted February 10, 2018 Share Posted February 10, 2018 What FP works in the taccom bolt? Standard AR or ?? Also what FP in KAW bolt?? Link to comment
BartCarter Posted February 10, 2018 Share Posted February 10, 2018 CMMG Mk9 firing pin: CMMG 15.99 Optics Planet 17.99 Primary Arms 11.99 Link to comment
Shorty4087 Posted February 12, 2018 Share Posted February 12, 2018 On 2/10/2018 at 1:23 PM, BartCarter said: CMMG Mk9 firing pin: CMMG 15.99 Optics Planet 17.99 Primary Arms 11.99 On 2/9/2018 at 8:25 PM, stick said: This!!! and Optics planet has them cheaper than CMMG. I carry 2 pins and three springs. My CMMG firing pin has yet to break after 2 yrs of practice and competition, but I did change out proactively this year. I’m also keeping a couple of spares w/springs now that I’m traveling farther for matches. Link to comment
yellowthunder Posted February 12, 2018 Share Posted February 12, 2018 On 2/9/2018 at 9:33 AM, Flatland Shooter said: With my next trip to the range I will have over 10K rounds through my original AR-9. From birth it has had a Hiperfire 24C with heavy springs (light trigger pull) and I'm still on the original firing pin and spring. I know I should change them out but what the heck. Wait until it fails. I have additional AR-9's all with Hiperfire triggers with not so many rounds through them but so far no broken firing pins or springs. I always carry a spare complete bolt in my range bag that has been tested to assure it will function properly. I also have a bolt at the house that is designated for "dry fire only". I'm sure if I took it to the range it would fire just fine but that's not its job. Maybe just luck but I satisfied. What FP are you using? Link to comment
longbeard Posted February 12, 2018 Share Posted February 12, 2018 Taccom has a firing pin on their website now. Claims it's stronger steel. Like $18 shipped. Link to comment
Flatland Shooter Posted February 12, 2018 Share Posted February 12, 2018 14 hours ago, yellowthunder said: What FP are you using? Its the stock firing pin that came with the PSA Hybrid bolt. Link to comment
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