AR Sponsor
Posted: 8/17/2009 2:31:29 PM EDT
| I bought a stripped POF 415 Gen III lower and a lpk. I assembled the entire thing with no problems except for the ambi bolt catch. The spring is not long enough to put pressure on the catch even with the extended nipple (I dont know what its called). I emailed POF and they did not have any advice for me, just saying that a standard lpk should work. Any ideas? |
|
You did not receive all the parts you need. Your POF Gen III lower has the option of a right and left side bolt release...you need a second pin. Go to the POF web site and look at their stripped lower pics. Just built mine and had the same issue.
http://www.pof-usa.com/lower/lowerreceiver.htm |
I have the exact same problem. Based on what I have read in other posts, POF seems to be unaware or unwilling to acknowledge the issue. Strange for such a reputable company of high end products. I'm somewhat new to black rifles, but certainly not new to firearms. This issue is the only thing holding me up from hitting the range. ( and its driving me insane ) If anybody finds a fix for this, PLEASE let me know.
ThanX |
|
ive tried using the bolt catch buffer from POF on one end of the spring and the one from my LPK on the other end. That still doesnt allow their catch release button to function.
Lets hope someone chimes in with an answer soon. Im holding up sending in my form 1 to ATF cause i dont want to have this lower registered if i cant get this to work. C EDIT: Hold up!!! This may be the answer. I dont have an upper to put on and test it,,,,,but i think it may work by using both bolt catch buffers assembled on either end of the spring!!! Test this out ,,, see if it will hold the bolt,,then release it assembled this way. C |
| i did not have an issue with mine. it's been a while since i put it together but you have to use the long bolt catch buffer that is included with the lower, the stock bolt catch spring and the stock bolt catch buffer. Mine works without an issue, you can't use the ambi button to lock the bolt back but it does work to release the bolt |
|
$60.00? Son of a... . That's $60.00 further away from that HWS I was saving for. Maybe I should just sell the POF lower and buy a couple from Stag for the same price with less to worry about..... this is really frustrating. Building is fun, but shooting is better.
Thanks to everyone for all the advice. Awesome site! |
|
Quoted:
Unfortunately, the shop I bought mine from went out of business. Can't imagine why........ Pretty limited on good shops in Cali..... Anybody know if POF will sell just the parts I need , or if I'll need a whole new LPK? about half the page down is the ambi parts, they aren't cheap though. a new lower parts kit won't do you any good if you still dont have the ambi parts kit Ambi Parts Kit |
|
Bummer. I guess that's what I get for rushing into something without researching it first. Would have been nice if the chowder heads at the shop I bought it from had mentioned it though. Is there a way around using the ambi release? I really don't care one way or the other, I just want to shoot the damn thing!
|
| Call POF and talk to Chris. You have to use BOTH buffers, spring in the middle. You do not need an upper to test any thing. I have built 3 POF machines and they have all worked flawlessly. I used the LPK from RRA (2 stage). I have not had any problems, best receivers on the market! |
|
Anyone have any ideas how this was resolved? I am having the same problem with my 308 POF lower. I'm using both buffers and the stock LPK spring and the ambi catch still does not work at all. There is not enough spring pressure on the left side/stock bolt catch either, as its very loose, like a longer spring is needed. I am using an AR-15 DPMS LPK plus the addl POF lower parts supplied. Here's how I have it setup from Left to Right on the lower:
LPK Bolt catch, LPK bolt catch buffer. LPK bolt catch spring, POF special long bolt catch buffer, ambi bolt release button. The one thing I was wondering was if there is a difference in the long POF bolt catch buffer for the .308 vs the .223. If the .223 is shorter I was thinking maybe there was a mixup and I got the .223 instead of the .308 one? But if they are the same this doesn't help. Any help would be greatly appreciated. Thanks, Alex |
|
I meant to follow up with the details, but haven't had a chance yet.
Here's how this was resolved: The POF .223 and .308 both come with the POF lower parts that are needed to make the ambi safety function. However, the .308 bolt catch plunger is actually slightly longer than the .223 one (maybe 1/4in)! Thus the .223 one isn't long enough to engage the release when pressed. Evidently since they are similar parts, the .223 bolt catch plunger/detent was included as one of my POF 5 special lower parts, instead of the .308 one. I was suspecting this might be the case, and I talked to Chris from POF on the phone who felt this was the issue. He sent me a .308 plunger in the mail and now my ambi catch is functioning. I haven't tested it at the range but its working as expected and will release the bolt when locked back. Something to note the ambi catch (right side button) will only *release* the bolt when its already held back. You can't press the right side button to catch the bolt and lock it back, this must be done with the standard left side bolt catch button. It will release the bolt however, once it is held back. Here's how the setup looks from left to right on the .308 lower receiver: Standard AR-15 bolt catch - Standard AR-15 Bolt Catch plunger/detent - Standard AR-15 Bolt Catch Spring - Special POF .308 Bolt Catch Plunger/Detent (must be .308 variant, .223 is too short!) - POF Ambi Bolt Release Button. The two threaded detents are use in place of the roll pins to hold the standard AR-15 bolt catch and the Ambi bolt release in place. The screw in with a hex key. POF cust service was very good about handling this. Chris sent the plunger out the very day I talked to him, and did it for free. Let me know me know if anyone has any questions and I hope this helps as a reference for the future. -Alex |
|
I was putting together my son's SBRed P-416 Receiver and had a P-308 Pin sent to me in my kit instead of a P-416 pin. I spoke to POF and they did not believe me till they reviewed the following pictures.
I used an RRA LPK. Count the coils and see if your spring has the same amount of coils. 
Chris kept telling me it was my mistake. He was as Helpful as Obama. While we were on the phone I had to resend him the above pictures. It was then he realized it wasn't My Mistake, but POF's. He did send me a smaller P-416 pin that day. Hope this helps. |
AR Sponsor