bofor 7 Posted October 13, 2013 Report Share Posted October 13, 2013 Anyone got any ideas for stopping the forend nut loosening during firing and also the Gas ring locking nut loosens as well. Quote Link to post Share on other sites
steveUK 9 Posted October 13, 2013 Report Share Posted October 13, 2013 I use blue loctite, does the trick. One of the guys at the range has drilled and tapped a grub screw in that also works well. 1 Quote Link to post Share on other sites
bofor 7 Posted October 13, 2013 Author Report Share Posted October 13, 2013 Steve Have you got a pic/description of the Locktite bottle, does it unscrew ok, is it in both areas ?. And the grub screw, is there one in both the forend and gas ring lock nut ? Quote Link to post Share on other sites
steveUK 9 Posted October 13, 2013 Report Share Posted October 13, 2013 Hi Bofor, it's blue loctite 242 and I only use it on the gas regulator nut, it undoes ok but I use a bit of degreaser before I apply a few drops. Still looking for a good solution for the forend nut though. The guy at the range has one grub screw in the gas regulator nut only. One thing I have tried on the forend nut is a rubber washer, the sort that goes in a kitchen tap, it seems to hold it ok. Quote Link to post Share on other sites
compshootfl 40 Posted October 13, 2013 Report Share Posted October 13, 2013 A simple rubber o-ring does the trick. Quote Link to post Share on other sites
AR-12 Shotgun 16 Posted October 13, 2013 Report Share Posted October 13, 2013 +1 on the o-ring. But if that isn't good enough, a more expensive option is the T&N guide rod. It comes with a new fore end nut that has a common thread size. Quote Link to post Share on other sites
bofor 7 Posted October 13, 2013 Author Report Share Posted October 13, 2013 +1 on the o-ring. But if that isn't good enough, a more expensive option is the T&N guide rod. It comes with a new fore end nut that has a common thread size. Does this new guide rod also solve the gas ring locking nut loosening as well ? Quote Link to post Share on other sites
AR-12 Shotgun 16 Posted October 13, 2013 Report Share Posted October 13, 2013 (edited) Other than the factory fore end nut, I never had any issues with the stock configuration working loose. I haven't heard any complaints about the new guide rod on here, but that doesn't mean much. Edited October 13, 2013 by AR-12 Shotgun Quote Link to post Share on other sites
Flatland Shooter 22 Posted October 13, 2013 Report Share Posted October 13, 2013 Mine also has the gas ring locking nut working loose but its usually after 200 rds or so. When reassembling the gun, I clamp down and put a little extra torque. The forend nut starts to come loose in under 25 rds. Extra torque just doesn't seem to help. I'm looking for an appropriate sized O-ring to try. Bill Quote Link to post Share on other sites
cad_man 4 Posted October 13, 2013 Report Share Posted October 13, 2013 (edited) The nut/set screw configuration of the FB handguard is working so far, hasn't loosened yet. If loosening does become an issue I'll drill out the set screw threads of the nut and drill & tap the rod. At each outing, less than ten rounds through and the regulator lock ring loosens every time. Part of the problem seems to be the low thread height percentage and pretty loose tolerance, so I solved that with an extra long 10-32 dogpoint set screw. First milled a couple small flats to accurately tighten the ring with a small wrench. Held the gun on my mill and drilled a full diameter hole (#30 drill) x 5/16" deep through the ring and into rod. Drill and tap the ring in place then remove the ring and finish tapping by hand. Also milled a small notch to match the assembly. The dogpoint is .127 dia. and the hole is .1285 dia., so the ring has to be tightened accurately. That's the set screw in the first pic. Edited October 13, 2013 by cad_man 2 Quote Link to post Share on other sites
bofor 7 Posted October 13, 2013 Author Report Share Posted October 13, 2013 Cad-man That is an excellent job, the photo`s and run down are great also, pity I don`t have access to the mill/drill equipt. Quote Link to post Share on other sites
cad_man 4 Posted October 13, 2013 Report Share Posted October 13, 2013 Cad-man That is an excellent job, the photo`s and run down are great also, pity I don`t have access to the mill/drill equipt. Where are you located? Quote Link to post Share on other sites
ShadowFire 220 Posted October 13, 2013 Report Share Posted October 13, 2013 (edited) Other than the factory fore end nut, I never had any issues with the stock configuration working loose. I haven't heard any complaints about the new guide rod on here, but that doesn't mean much. The XN model has a left hand thread and the biggest issue is the reverse of the old model, getting it off. I had to take an old towel and a pair of pliers when i got mine to get the lock nut off. I still like my MKA though. Edited October 13, 2013 by ShadowFire Quote Link to post Share on other sites
bofor 7 Posted October 13, 2013 Author Report Share Posted October 13, 2013 Cad-man That is an excellent job, the photo`s and run down are great also, pity I don`t have access to the mill/drill equipt. Where are you located? Ummmm...England Quote Link to post Share on other sites
cad_man 4 Posted October 14, 2013 Report Share Posted October 14, 2013 I guess your a little too far to help out. If you are ever out here on vacation though... Quote Link to post Share on other sites
bofor 7 Posted October 14, 2013 Author Report Share Posted October 14, 2013 I guess your a little too far to help out. If you are ever out here on vacation though... Thanks man, if so I will let you know Quote Link to post Share on other sites
KIRCH76 12 Posted October 14, 2013 Report Share Posted October 14, 2013 I had a problem with my gas regulator jamb nut and the hand guard nut coming loose. I used an o ring to fix both I just placed a tight o ring on the end of the guide rod right behind the jamb nut so it can't back off and and o ring between the hand guard and nut so it keeps that tight.... Problem solved Quote Link to post Share on other sites
bofor 7 Posted October 14, 2013 Author Report Share Posted October 14, 2013 I guess I`ll have to try a lot of these easy fixes to start with but try and work towards getting a more permanent fix like Cad-man`s Quote Link to post Share on other sites
Brookers 0 Posted October 14, 2013 Report Share Posted October 14, 2013 I guess I`ll have to try a lot of these easy fixes to start with but try and work towards getting a more permanent fix like Cad-man`s Bofor, If your like me and in the UK, try Steve at Shield shooting center or Andy H at Master Class Custom Guns, both of those guys can do that work for you. Brookers Quote Link to post Share on other sites
Anubis 38 Posted October 21, 2013 Report Share Posted October 21, 2013 Off topic but I don't envy you folks living in the UK. When I lived there I looked into getting a shotgun and the amount of paperwork was just beyond comprehension, so I went 8 years without a gun instead. Quote Link to post Share on other sites
steveUK 9 Posted October 21, 2013 Report Share Posted October 21, 2013 It's not that bad to get a firearms certificate (FAC). I had to join a club and be a probationary member for 6 months, pass the NRA safety course, have a police visit, give access to medical records and have 2 referees that have known me for greater than 2 years. Easy peasy really :-) Quote Link to post Share on other sites
Anubis 38 Posted October 21, 2013 Report Share Posted October 21, 2013 I imagine it would be a lot easier being a UK citizen. I didn't research it, just looked at what my landlord had to go through to get his and didn't bother. Quote Link to post Share on other sites
Canajun 1 Posted October 23, 2013 Report Share Posted October 23, 2013 (edited) When people ask me why I moved to the US from Canada, my answer is simple... the 2nd Amendment! Oh... and I used a black hose washer on my forend and cranked it down hard. Worked like a charm! Edited October 23, 2013 by Canajun 1 Quote Link to post Share on other sites
congewe 14 Posted October 23, 2013 Report Share Posted October 23, 2013 Hose washer. Damn used one of those to fix the tachometer amp on my 1982 Mercedes 300td. Will give it a try on the MKA. Who ever invented the hose washer gets mad respect from me. He or she could not have known the contribution to society that invention made. Hope there is a statue in some park in honor. 1 Quote Link to post Share on other sites
Canajun 1 Posted October 23, 2013 Report Share Posted October 23, 2013 Lol! Probably the same dude who invented duct tape! Quote Link to post Share on other sites
JeremyT 15 Posted October 23, 2013 Report Share Posted October 23, 2013 I hear tell that it was the son of the guy that first sliced a loaf of bread. Quote Link to post Share on other sites
Rebel Katt 6 Posted October 23, 2013 Report Share Posted October 23, 2013 I hear tell that it was the son of the guy that first sliced a loaf of bread. Appearing Nitely at the Laugh Shack! Jeremy Tappel! Quote Link to post Share on other sites
JeremyT 15 Posted October 23, 2013 Report Share Posted October 23, 2013 It's nice to know you care enough to get to know me. Quote Link to post Share on other sites
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