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11-26-2015, 07:04 PM
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New MP15OR yepyep
Just bought it today, haven't been able to get to a range yet but I noticed an odd thing, No front sling mount! can anyone recommend a bolt on front sling mount? I do NOT plan on modifying the fore end, Im mounting a 3x scope and canted iron sights and that's it. A side note, has anyone run this ammo with success?
Brown Bear .223 Rem. Laquer Coated Steel Case Jacketed Hollow Point, 55 Grain, 3050 fps, 500 Round Case, AB223HP
164 ish for 500 rds...
anyways, love the forum, keep your powder dry.
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11-26-2015, 07:28 PM
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I had a M&P 15OR a few years ago. I'm not sure if they still do, but back then they used Troy Industries gas blocks who also made a swivel sling mount that snapped into a hole on the bottom of the gas block.
I believe this was it https://troyind.com/products/ssqd-swivel
....
Last edited by Mister X; 11-26-2015 at 10:21 PM.
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11-26-2015, 07:42 PM
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If you're keeping the stock hand guard and if you're gonna use the railed gas block for canted sights, then I don't think you really have any options. Maybe there is a barrel mounted option but I'm not aware of any. You could also get a magpul qd or sling mount to put on your receiver rails but that would depend how much real estate your scope mount takes.
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11-26-2015, 08:06 PM
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there are two holes on the underside of the gas block, one looks to be threaded and one isnt
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11-26-2015, 09:39 PM
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The unthreaded hole should hold a QD sling mount, I believe.
I recently put on a free float handguard. S&W does not like you unpinning the gas block. First of all it's put on backward, and second, they use a hydraulic press. I had to have the block cut off to put a the guard on. An adjustable gas block took the place of the old block.
Either way, it's a great rifle -- enjoy.
Last edited by Twistofer; 11-26-2015 at 10:06 PM.
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11-26-2015, 10:40 PM
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Thanks for the heads up. Has Anyone used the lacquer coated steel ammo?
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11-26-2015, 11:17 PM
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Quote:
Originally Posted by Jgmp15
Thanks for the heads up. Has Anyone used the lacquer coated steel ammo?
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I have been using it and polymer coated steel ammo exclusively lately and have had no problems with function in my MP15 OR. In my experience the biggest problem with using steel cased ammo, occurs when you do not clean the chamber between using steel cased ammo and brass.
Although the steel cased ammo is mild steel, it does not expand and form to the chamber as tightly as brass cases seem to do. Therefore letting more soot and junk get by the shell case in the chamber causing stuck cases especially when shooting brass ammo after shooting a lot of steel cased stuff. I prefer the lacquer coated steel ammo over the polymer steel coated myself.
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11-26-2015, 11:46 PM
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Cool, I went ahea ordered the ammo, explaining to the wife that 500 RDS at about .30 each was way better than diapers for our kids.
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11-27-2015, 12:00 AM
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LOL, you might regret not having those diapers
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11-27-2015, 12:43 AM
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11-27-2015, 01:19 PM
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Interesting. It doesn't look like the gas block has a QD mount:
Could you post a pic of yours?
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11-27-2015, 06:58 PM
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I will after dinner. Tux fire the link to the ammo
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11-27-2015, 07:39 PM
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Quote:
Originally Posted by Rastoff
Interesting. It doesn't look like the gas block has a QD mount:
Could you post a pic of yours?
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Rastoff -- this looks different from the other M&P15OR's. It looks like the pinned gas block which was on my model is now one that is held in place by 2 set screws on the bottom which are anchored on dimples on the barrel. This appears to be similar to the setup that Syrac's adjustable and non-adjustable blocks use.
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11-27-2015, 09:01 PM
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Quote:
Originally Posted by Rastoff
Interesting. It doesn't look like the gas block has a QD mount:
Could you post a pic of yours?
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That looks nothing like the gas block on my MP15 OR.
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11-27-2015, 09:17 PM
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Quote:
Originally Posted by Tbat
That looks nothing like the gas block on my MP15 OR.
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11-27-2015, 09:17 PM
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That's it from a slight angle
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11-27-2015, 09:49 PM
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Quote:
Originally Posted by Jgmp15
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That's just like my OR. The larger hole will take a OD sling swivel.
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11-27-2015, 10:28 PM
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sweet! thanks, now to get me a gotton gi web sling and a swivel. So I could use one of those high speed QD mount bipods as well eh?
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11-27-2015, 10:49 PM
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Quote:
Originally Posted by Twistofer
Rastoff -- this looks different from the other M&P15OR's.
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I thought it might based on what everyone was saying. I took it off S&W's site though. This is a pic from their M&P15OR page. Maybe they've changed.
Quote:
Originally Posted by REM 3200
That's just like my OR. The larger hole will take a OD sling swivel.
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Yeah, it does look like that larger hole will take a QD swivel. The smaller threaded hole will probably take a permanent attachment like this:
GrovTec Sling Swivel Stud Pack 1/8 Machine Screw Steel Package of 12
It's a nice gas block. I've never seen one like that. I don't like slings so, a QD point like this would be fantastic for those few times I have to use a sling.
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11-28-2015, 12:59 AM
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Quote:
Originally Posted by Jgmp15
sweet! thanks, now to get me a gotton gi web sling and a swivel. So I could use one of those high speed QD mount bipods as well eh?
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Or use the threaded hole for the bipod.
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11-28-2015, 10:46 AM
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IM going to hold off on the bipod. This is a home defense weapon, I have to keep reminding myself im not any kind of operator or mall ninja. Im going to zero the 3x at 50/200 and the canted iron sights @ 25. have 2 HD mags loaded w 44 gr hollowpoint varmint ammo, low penetration and lower risk of pass thru i hear. Hope i never have to use it but dont want to be worrying (excessively) about collateral damage in case i have to.
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11-28-2015, 01:14 PM
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Quote:
Originally Posted by Rastoff
I thought it might based on what everyone was saying. I took it off S&W's site though. This is a pic from their M&P15OR page. Maybe they've changed.
Yeah, it does look like that larger hole will take a QD swivel. The smaller threaded hole will probably take a permanent attachment like this:
GrovTec Sling Swivel Stud Pack 1/8 Machine Screw Steel Package of 12
It's a nice gas block. I've never seen one like that. I don't like slings so, a QD point like this would be fantastic for those few times I have to use a sling.
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I have thought that myself about the small holeit would probably work. I discovered that the larger one was a quick detach mount after seeing a review on youtube or something. I had bought my MP15OR sometime during Obama's first term. I think it was about $700 after a $200 rebate.
It looks like there may be a set screw up in the smaller hole, I don't know I have never tried to remove the gas block on the MP15 OR.
Last edited by Tbat; 11-28-2015 at 01:20 PM.
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11-28-2015, 01:17 PM
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Quote:
Originally Posted by Jgmp15
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That is exactly like the gas block on my MP15 OR.
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11-28-2015, 06:22 PM
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Quote:
Originally Posted by Tbat
That is exactly like the gas block on my MP15 OR.
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Ditto...before I took it off and put on an adjustable gas block, which, incidentally, has a QD mount. I asked S&W what the threaded hole was for and their tech guy had "no idea." Any thoughts anyone?
PS: Removal of the gas block -- it's a B#^^*h
Last edited by Twistofer; 11-28-2015 at 06:25 PM.
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11-28-2015, 06:23 PM
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Probably just a threaded hole for a sling swivel stud.
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