Hello everyone, I have a LMT MWS 16 SS. I have approx. 400 rounds down the pipe and every time I go to the range, I have cycling issues. The rifle works flawlessly until i get about 50-60 rounds through it. Once I get to this point the bolt will stick and won't fully lock shut. It also cycles home veeery slow. At this point ill take the carrier apart, wipe everything down, and put a light coat of lube on it. After doing that, the rifle cycles perfectly again. I notice the bolt, carrier, cam, etc. get very dirty even after 50-60 rounds. What the heck am I doing wrong. I have the second generation bolt carrier with the first generation bolt.
- Thread starter Tim Mogab
- Start date
Re: LMT MWS cycle issues??
What ammo are you using?
What ammo are you using?
Re: LMT MWS cycle issues??
I havent had any issues with my LMT and this is the first ive heard of any problems.
What mags are you using? Ammo? Oil?
Do you still have the Dry Film Lube in the upper? When I first got mine I took all the dry film lube off because when I first cleaned my gun with break free CLP it made the Dry film come off and get really sticky. So I removed it all.
I havent had any issues with my LMT and this is the first ive heard of any problems.
What mags are you using? Ammo? Oil?
Do you still have the Dry Film Lube in the upper? When I first got mine I took all the dry film lube off because when I first cleaned my gun with break free CLP it made the Dry film come off and get really sticky. So I removed it all.
Re: LMT MWS cycle issues??
I have the older billet with the second gen carrier and 1st gen bolt. I am running a test right now just oiling the bolt (gas rings and all except the face) and carrier to see when it fails. I have 220 rounds of hand loads, hasnt had a problem......Yet.
I have the older billet with the second gen carrier and 1st gen bolt. I am running a test right now just oiling the bolt (gas rings and all except the face) and carrier to see when it fails. I have 220 rounds of hand loads, hasnt had a problem......Yet.
Re: LMT MWS cycle issues??
I use Slip 2000 lube and I also tried Otis. I have tried Fiocchi ammo, Hornady, Black Hills, Federal Gold Medal, American Eagle and it made no difference. I also tried hand loads with SMK and Hornady bullets with Varget or RL-15. I removed all the dry lube from the factory before ever shooting it, unless the dry lube needs to be scrubbed off or something special that I am missing. I even clean the buffer tube and tried lubing the buffer spring.
I use PMags.
Thanks for the help.
I use Slip 2000 lube and I also tried Otis. I have tried Fiocchi ammo, Hornady, Black Hills, Federal Gold Medal, American Eagle and it made no difference. I also tried hand loads with SMK and Hornady bullets with Varget or RL-15. I removed all the dry lube from the factory before ever shooting it, unless the dry lube needs to be scrubbed off or something special that I am missing. I even clean the buffer tube and tried lubing the buffer spring.
I use PMags.
Thanks for the help.
Re: LMT MWS cycle issues??
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Re25</div><div class="ubbcode-body">I have the older billet with the second gen carrier and 1st gen bolt. I am running a test right now just oiling the bolt (gas rings and all except the face) and carrier to see when it fails. I have 220 rounds of hand loads, hasnt had a problem......Yet.
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Mine is the same. My only issue has been a FTF with no primer strikes after installing a new trigger. I thought it was the trigger, but come to find out it was the firing pin. Something was preventing it from striking. I took the bolt/carrier apart and cleaned each part back to the nickel finish and put it back together. Problem solved in about 5 mins.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Re25</div><div class="ubbcode-body">I have the older billet with the second gen carrier and 1st gen bolt. I am running a test right now just oiling the bolt (gas rings and all except the face) and carrier to see when it fails. I have 220 rounds of hand loads, hasnt had a problem......Yet.
</div></div>
Mine is the same. My only issue has been a FTF with no primer strikes after installing a new trigger. I thought it was the trigger, but come to find out it was the firing pin. Something was preventing it from striking. I took the bolt/carrier apart and cleaned each part back to the nickel finish and put it back together. Problem solved in about 5 mins.
Re: LMT MWS cycle issues??
OP can you take a picture of the outside "port" side of your bolt carrier and the "face" of your bolt and post them. I went through a similar problem and they fixed it for me.
If you have the small hole KAC carrier and the single ejector bolt you might want to contact LMT and have them replaced or call Gene at LMT and let him know you are having a problem. Gene is a good guy and solved my problem for me and it took a while because I was one of the first they had seen.
One more thing. Do you have carrier tilt scratch marks on the lip of the extension tube?
OP can you take a picture of the outside "port" side of your bolt carrier and the "face" of your bolt and post them. I went through a similar problem and they fixed it for me.
If you have the small hole KAC carrier and the single ejector bolt you might want to contact LMT and have them replaced or call Gene at LMT and let him know you are having a problem. Gene is a good guy and solved my problem for me and it took a while because I was one of the first they had seen.
One more thing. Do you have carrier tilt scratch marks on the lip of the extension tube?
Re: LMT MWS cycle issues??
I'll post some picks later today. I do have carrier tilt scratch marks on the lip of the extension tube! Wtf is up with that? My bolt carrier is brand new from LMT ( I just got it back last week from them under warranty because my first BCG's finish was flaking off). My carrier has the three small gas holes and the one large one. My first carrier was the same but it had a different finish. I still have the same cycling issues with the new carrier. My bolt has only one ejector.
I'll post some picks later today. I do have carrier tilt scratch marks on the lip of the extension tube! Wtf is up with that? My bolt carrier is brand new from LMT ( I just got it back last week from them under warranty because my first BCG's finish was flaking off). My carrier has the three small gas holes and the one large one. My first carrier was the same but it had a different finish. I still have the same cycling issues with the new carrier. My bolt has only one ejector.
Re: LMT MWS cycle issues??
I have never heard of this issue before this thread. I run mine very wet with M-Pro 7 and have never had a single issue. If you are relying on the wonder coating to act as a lube I would suggest changing your approach and treat it as you would treat any regular gas AR. With the carbine gas on the 16" gun I am surprised you have experienced any issues.
I have never heard of this issue before this thread. I run mine very wet with M-Pro 7 and have never had a single issue. If you are relying on the wonder coating to act as a lube I would suggest changing your approach and treat it as you would treat any regular gas AR. With the carbine gas on the 16" gun I am surprised you have experienced any issues.
Re: LMT MWS cycle issues??
The only problem with mine was once when I discovered that a round didn't have any powder (had a hell of a time getting it out of the chamber after the primer went off). Zombies ate the powder, I guess. Mine with a 20" SS barrel outshoots my Rem. LTR. I'd get some professional help and call the very helpful CS guy at LMT. The company doesn't want any bad PR and will do anything reasonable to make you happy. You paid too much for that puppy to wonder if it is going to shoot. Just my $.02
The only problem with mine was once when I discovered that a round didn't have any powder (had a hell of a time getting it out of the chamber after the primer went off). Zombies ate the powder, I guess. Mine with a 20" SS barrel outshoots my Rem. LTR. I'd get some professional help and call the very helpful CS guy at LMT. The company doesn't want any bad PR and will do anything reasonable to make you happy. You paid too much for that puppy to wonder if it is going to shoot. Just my $.02
Re: LMT MWS cycle issues??
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Here are some picks of my BCG, bolt, and buffer tube. The buffer tube has a gouge/scratch mark from carrier tilt. I appreciate all the help ya'll have given me so far. Freakin zombies stealing powder once again.
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Here are some picks of my BCG, bolt, and buffer tube. The buffer tube has a gouge/scratch mark from carrier tilt. I appreciate all the help ya'll have given me so far. Freakin zombies stealing powder once again.
Re: LMT MWS cycle issues??
Here are some picks of my BCG, bolt, and buffer tube. The buffer tube has a gouge/scratch mark from carrier tilt. I appreciate all the help ya'll have given me so far. Freakin zombies stealing powder once again.
Fixed it for you
Here are some picks of my BCG, bolt, and buffer tube. The buffer tube has a gouge/scratch mark from carrier tilt. I appreciate all the help ya'll have given me so far. Freakin zombies stealing powder once again.
Fixed it for you
Re: LMT MWS cycle issues??
Thanks Ramus.
Thanks Ramus.
Re: LMT MWS cycle issues??
Those dont look like scratches in the buffer tube. Looks like to me that its just the Dry Film lube wearing off. All that gray stuff is just Dry Film lube. They put it in the inside and outside of the buffer tube and inside the upper. It will all come off with some elbow grease and a good cleaner like Break Free.
I would check your mags. If your using Pmags make sure they are the newer ones with the back cut off. They will also have a little dot from a soldering iron on the sides where it says Magpul. I would also make sure your Dry Film Lube isnt real sticky. It gets sticky when certain cleaners get on it. I removed all of mine. If you are still having problems I would call LMT they have great customer Service and stand behind their product 110%.
Those dont look like scratches in the buffer tube. Looks like to me that its just the Dry Film lube wearing off. All that gray stuff is just Dry Film lube. They put it in the inside and outside of the buffer tube and inside the upper. It will all come off with some elbow grease and a good cleaner like Break Free.
I would check your mags. If your using Pmags make sure they are the newer ones with the back cut off. They will also have a little dot from a soldering iron on the sides where it says Magpul. I would also make sure your Dry Film Lube isnt real sticky. It gets sticky when certain cleaners get on it. I removed all of mine. If you are still having problems I would call LMT they have great customer Service and stand behind their product 110%.
Re: LMT MWS cycle issues??
I wondered about that gray stuff. I didn't realize that was the dry film lube. I'll remove it and test it out on saturday. I'll also check my mags. Thank you BigB308.
I wondered about that gray stuff. I didn't realize that was the dry film lube. I'll remove it and test it out on saturday. I'll also check my mags. Thank you BigB308.
Re: LMT MWS cycle issues??
Your welcome bro. That Dry film lube is a pain in the ass to get off. It took me 4 hours to remove it all from the upper and the outside of the buffer tube. I left it inside the buffer tube because it was hard to scrub it.
I used break free clp to remove it. I sprayed it on and let it soak for 15 minutes and then started to wipe it off. I had to keep spraying it and soaking it to remove it all. It takes a long time and doesn't come off easy. There might be a better chemical to remove it but I dont know what it is.
Let us know how it works out for you.
Your welcome bro. That Dry film lube is a pain in the ass to get off. It took me 4 hours to remove it all from the upper and the outside of the buffer tube. I left it inside the buffer tube because it was hard to scrub it.
I used break free clp to remove it. I sprayed it on and let it soak for 15 minutes and then started to wipe it off. I had to keep spraying it and soaking it to remove it all. It takes a long time and doesn't come off easy. There might be a better chemical to remove it but I dont know what it is.
Let us know how it works out for you.
Re: LMT MWS cycle issues??
Have a look at the cut on the extractor. I had one that wasnt cut enough and would not allow the bolt to go all the way home sometimes. Also check your gas rings and see if they are chewed up or if its rough inside the bc. I do see the gouge on the lip of the extension tube. I dont think it will get any worse than that. I have about 600rds on mine and it got that bad and stopped. Gene at lmt said he has 12k on his and it stays at the level and gets no worse. Do you have two tiny ski ramps on the back bottom of your BC where it touches the buffer tube? Do you see my dual ejector bolt?
Do you have any brass marks on the front of your ejection port?
The one NOT mounted is the bad one.......
Have a look at the cut on the extractor. I had one that wasnt cut enough and would not allow the bolt to go all the way home sometimes. Also check your gas rings and see if they are chewed up or if its rough inside the bc. I do see the gouge on the lip of the extension tube. I dont think it will get any worse than that. I have about 600rds on mine and it got that bad and stopped. Gene at lmt said he has 12k on his and it stays at the level and gets no worse. Do you have two tiny ski ramps on the back bottom of your BC where it touches the buffer tube? Do you see my dual ejector bolt?
Do you have any brass marks on the front of your ejection port?
The one NOT mounted is the bad one.......
Re: LMT MWS cycle issues??
Once again thank you guys for all your help.
So I removed all the gray dry lube from my upper receiver and it took me about four freaking hours! I used CLP and after two hours I tried M-Pro 7 for the other two hours. Both seemed to work the same. I didn't remove it from the buffer tube because I just switched out my whole stock to a PRS. After all that I lubed up my bolt, carrier, etc. a little more than I normally do like D90king was saying and brought it to the range.
As I said before, I would only get about 50-60 rounds down range and the bolt would start sticking and would fail to lock up. Also the whole carrier would cycle home reeeaaally slow and I am pretty sure that was because the dry lube in the buffer tube would start to get gummy.
Anyways, when I brought it tho the range today I fired 170 rounds downrange without any issues at all. The rifle has never cycled this awesome! I fired factory ammo and six different reloads. It didn't even come close to having an issue. Before, I would notice the carrier sloooowly go home around 30 rounds and then once I hit 50 it would go to shit. Thanks again BigB308.
To answer problemchild, my extractor seems to be cut just fine, my gas rings are not chewed up, the inside of my bolt carrier is really smooth, I do not have any brass marks on the front of my ejection port, and I do have the little ski ramps on the back of my carrier. Once I read you post I was really nervous to check all those things! My new buffer tube for the PRS stock is chewed up from shooting it today just like the buffer tube from my SOPMOD. Ill keep an eye on it, but I don't think it will get any worse like you were saying.
Thanks again!
Once again thank you guys for all your help.
So I removed all the gray dry lube from my upper receiver and it took me about four freaking hours! I used CLP and after two hours I tried M-Pro 7 for the other two hours. Both seemed to work the same. I didn't remove it from the buffer tube because I just switched out my whole stock to a PRS. After all that I lubed up my bolt, carrier, etc. a little more than I normally do like D90king was saying and brought it to the range.
As I said before, I would only get about 50-60 rounds down range and the bolt would start sticking and would fail to lock up. Also the whole carrier would cycle home reeeaaally slow and I am pretty sure that was because the dry lube in the buffer tube would start to get gummy.
Anyways, when I brought it tho the range today I fired 170 rounds downrange without any issues at all. The rifle has never cycled this awesome! I fired factory ammo and six different reloads. It didn't even come close to having an issue. Before, I would notice the carrier sloooowly go home around 30 rounds and then once I hit 50 it would go to shit. Thanks again BigB308.
To answer problemchild, my extractor seems to be cut just fine, my gas rings are not chewed up, the inside of my bolt carrier is really smooth, I do not have any brass marks on the front of my ejection port, and I do have the little ski ramps on the back of my carrier. Once I read you post I was really nervous to check all those things! My new buffer tube for the PRS stock is chewed up from shooting it today just like the buffer tube from my SOPMOD. Ill keep an eye on it, but I don't think it will get any worse like you were saying.
Thanks again!
Re: LMT MWS cycle issues??
Your Welcome Bro. Im glad it worked out for you. Now you can enjoy that great weapon system.
Most cleaners act poorly with that Dry Film Lube and cause it to become very tacky and will also remove it. When I first got my gun I cleaned it before shooting it the first time and noticed the Dry Film Lube coming off and getting really sticky from the Break Free CLP. So I removed it all and never looked back. It was a huge pain in the ass. Like you said it takes hours to remove it all. Which is the last thing you want to do when you first by a gun. But it had to be done right.
Lately Ive been using that Mill Com TW25B grease, Oil and Cleaner/degreaser. Its expensive but well worth it. You should check it out. It makes every gun I own run like butter. Plus it cuts down my cleaning time by over half. Everything just wipes right off the gun.
Your Welcome Bro. Im glad it worked out for you. Now you can enjoy that great weapon system.
Most cleaners act poorly with that Dry Film Lube and cause it to become very tacky and will also remove it. When I first got my gun I cleaned it before shooting it the first time and noticed the Dry Film Lube coming off and getting really sticky from the Break Free CLP. So I removed it all and never looked back. It was a huge pain in the ass. Like you said it takes hours to remove it all. Which is the last thing you want to do when you first by a gun. But it had to be done right.
Lately Ive been using that Mill Com TW25B grease, Oil and Cleaner/degreaser. Its expensive but well worth it. You should check it out. It makes every gun I own run like butter. Plus it cuts down my cleaning time by over half. Everything just wipes right off the gun.
Re: LMT MWS cycle issues??
Good news on your gun.
I only use slip200 oil on mine. I use it on all my guns. it never gets sticky when mixing with the dry films. Plus it makes the gun easier to clean. Try slip2000. Its the oil used on BCM's dirty 14 for 50,000 rounds without cleaning.
Good news on your gun.
I only use slip200 oil on mine. I use it on all my guns. it never gets sticky when mixing with the dry films. Plus it makes the gun easier to clean. Try slip2000. Its the oil used on BCM's dirty 14 for 50,000 rounds without cleaning.
