Recently purchased a DPMS panther lite new. Went to a family friends in Joplin Mo. to see how it fire with a few hundred rounds of winchester,remmington all 55 gr. Rifle was cleaned and lubed with CLP before fireing. First 25 rounds was single shot, clean barrel repeat. Next was 10 rds clean barrel repeat for 100 rds
Used the new Remmington 5.56 ( about 60 rounds) fired like a champ! Utilized some 5 yr old winchester i had laying around ( stored well keep in mind) fired 3 succeful shots and had a faliure to load. After hitting the buttstock to the ground repeatly the round chambers and no more issued for the rest of the 30 round clip.
Decided to try a 30 round clip of new Remmington , no problems till the second magazine, applied immedite action as before.
Old ammo/new ammo didnt seem to make much of a differance with the malfunction. Rifle was well lube but not overly lube imo, 2 malfunctions dont seem much unless in time of need.
Anyone have similiar problems on new DPMS/M4 rifles or maybe a comment on problem occured i could remedy on my next range excurtion? Would seem the buffer isnt emmiting enough force to chamber the rounds on those malfunctions.
Were the 2 separate ftc in the same magazine? Could be an easy fix with a new spring and follower. Why hit the butt stock on the ground? Doe it not have a forward assist? I have never owned a DPMS some claim they have a tight chamber which causes ftc.
Blessings
Was 2 different magazines, both new. I had applied S.P.O.R.T.S., but when comeing to P ( pull the charging handle to the rear) the chargeing handle wouldnt, is the reason for striking the buttstock on the ground to chamber the round forward. The forward assist didnt assist either still didnt seat the bolt assembly for a proper round chambering.
Sounds like ammo or chamber issue, cos once it's in the chamber it should extract very easily if not fired. The fact you cannot eject the chambered round by pulling the charging handle definitely points at ammo too big or chamber very tight. Maybe a damn good chamber polishing will help. Why not speak to DPMS on this, they're there to help.
Is the extractor gripping the case at all when this happens? I had a similar problem a few years ago and traced it to a defective extractor. About once every magazine, it's claw wouldn't go over the cartridge rim, preventing it from either chambering or extracting properly.
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My rifle and pistol are only tools. I am the weapon.
Thanks all, i tried accessing DPMS forums last night, wouldnt accept my email address, ill try again or maybe just call. Hate to take it to an armorer/gunsmith in the KC area would be as a last resort only.
Next range practice and a few more rounds downrange might help me troubleshoot the prediciment.
Alright since Wunhunglo and now JBS has mentioned it, i will give a small instructional piece of info on AR/M16s the military teaches it and is also in the DPMS operations manual pg 28, 'Bolt Carrier Hung Up'
1. Remove magazine
2.Hold charging handle back and bang rifle butt on ground, KEEP CLEAR OF MUZZLE!! Caution : after round is removed, bolt is under tension
3. While bolt is held to rear, push charging handle forward. Round should fall through the magazine well.
I appriciate any comments, but lets keep them constructive please.
Well, if it's jammed up that tight, I guess banging it on the ground would make sense....As a thought, you might try to take the stock and buffer tube off and separating the upper and lower and working the bolt free from the bottom. I did that one time when I was in the military and it worked. Don't muck up the safety detent pin or spring, though. I still think it ought to be taught a lesson. A constructive lesson, of course.
I tried takeing the reciever pins out when it FTC, the buffer and bolt was about 1/8 inch from chambering fully. With the buffer locked back and unable to seperate upper and lower, i preformed immediate action of bangin buttstock to chamber round.( lesson taught was always purchase a rubber buttstock, plastic tends to crack)
Was able to log into DPMS forums tonight and will check out their customer service tomorrow, thanks all for replies.
This is what I would do. I would take the rifle apart, clean and lube well it well. Next range trip take just one type of ammo and try a number of mags and see if the problem repeats. The problem could be a bad mag or under powered ammo. Also your rifle needs to be broke in.
I would also look into an extractor upgrade basically a heavier extractor spring and a rubber gromet.
What type of gas block do you have? Is it the front sight base of one of the railed ones?
Were both of the mags that were in when you had problems the same brand with the same follower? Is this different than the mags you didn't have a problem with?
Check your feedramps... Make sure they gave you a matching barrel and upper receiver (M4 ramps and M4 ramps, or rifle ramps and rifle rampms...), and that they're clean
Make sure you have the right spring for your stock (carbine or rifle)
Otherwise, keep shooting it. Shoot some hotter loads (5.56) if your gun can (check what it's chambered for first). These guns have tight tolerances, and sometimes a little break-in is all it needs.
As for tapping the buttstock on the ground/table... That's what I would have done too. No reason at all to get into taking the whole thing apart to clear a misfeed....
