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GM-M37 16" Stainless Steel M4 for Mid Length gas system 5.56 NATO

Price:
$196.95
SKU:
GM-M37


Product Description

16" M4 Replacement barrel for  mid length gas system, 5.56mm NATO 1:8 twist, 416 Stainless Steel, Matte finish. It's been button rifled, thermo stress releived, precision air gauged, gas ported, and assembled with M4 extension with M4 feed ramps. The muzzle thread is 1/2 x 28.  This barrel is not pinned for front site. It weighs 1.9 lbs.

 


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Product Reviews

Showing reviews 1-5 of 11 | Next

  1. Pleased with purchase. 5 Star Review

    Posted by on 25th Dec 2016

    I bought this barrel just prior to Christmas; however, my wife intercepted it and wrapped it. Opened this morning and assembled rifle. Was packaged well and I cleaned prior to assembly. Test fired and sighted in with no issues. At this point I am very pleased with performance. Could only sight in at 50 yards with irons but accuracy was good @ approx 3/4 inch with American Eagle 62 grain (AE223N). Unlike others, I did not experience any miracles with ball-type ammo and mil-type trigger, but I didn't expect to. I have more expensive barrels that fair no better (and a little worse). Plan on additional tests tomorrow with better ammunition but thus far it appears to be a well made barrel and an excellent value. I do wish GM would provide pinned FSB or gas block as option. I do not like set screws.


  2. SS GM-37 m4 barrel 5 Star Review

    Posted by on 14th Nov 2016

    Very accurate barrel. Shoots everything ive put through it so far with great results. Getting 1/4 and less moa at 50yrds with most of the ammo ive used in it so far. Mostly just norma tac .223 but also a small variety of off the shelf hornady, american eagle .556 and winchester stuff. Definitely makes my chrome lined look like a rock thrower! Extremely pleased with the performance of it. Cools down quickly after burst sessions which i like! Would buy another without hesitation.


  3. GM-M37 5 Star Review

    Posted by on 28th Aug 2016

    Finally got my build together and have been able to fire it. I was very happy with the service and delivery of my barrel. I am even happier with the performance of this barrel. Thank you Green Mountain for making a great product at an affordable price!


  4. Perfect pairing to the GM-M18 tube 5 Star Review

    Posted by on 21st May 2016

    Purchased GM-M18 a couple months ago. A1 stock with Aero Precision M4E1 upper and enhanced handguard and Geisele G2S trigger. Federal 63 Classic through this tube - 1/2 MOA first rounds.
    Purchased GM-M37 2 weeks ago and assembled it with Aero Precision M4E1 upper and enhanced handguard yesterday with Magpul CTR stock and run of the mill parts kit trigger. Sub MOA at 300yds (iron sights) with Federal M855 green tip.
    Have three requests for the GM-M18 for builds now - awaiting availability.


  5. Looks great, and accurate. 5 Star Review

    Posted by on 20th May 2016

    Finish is perfect, installation was no problem. I had the chance to shoot it this morning, I got 3/4 MOA at 100 yds no problem and expect it to improve once it's broke in. Bore looks great, and cleaned really easy. Thank you for a great product Green Mountain!


Showing reviews 1-5 of 11 | Next