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GM-M8 16" 5.56x45mm 1:8 Twist

Price:
$182.95
SKU:
GM-M8
Availability:
OUT OF STOCK


Product Description

  • Caliber- 5.56x45mm
  • Twist- 1:8
  • Length- 16"
  • Profile- Government Under "See 1 more picture" there is a detailed drawing of this barrel.
  • Finish- Chrome Lined Phosphate
  • Gas System Length- Mid
  • Gas Block OD- .750+-(.001)
  • Steel Type- 41V50
  • Thread Pitch- 1/2x28
  • Weight- 1.85lbs

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Product Reviews

Previous | Showing reviews 6-10 of 68 | Next

  1. Perfect 5 Star Review

    Posted by on 28th Oct 2019

    I read all the good reviews on the forums about this barrel, and decided it was worth the chance...especially for the price point. Got it installed, and sure enough...sub moa at 100 with 77gr match ammo. Decided to stretch its legs, and put round after round on a 12x12 steel plate at 500 yards. So easy it was boring. This isnt some match rifle either...its a base m&p sport, with free float handguard and a 2.5-15 scope. Very impressed!!


  2. recce build 5 Star Review

    Posted by on 15th May 2019

    fantastic quality,fantastic price,GM is without a doubt your ace in the hole fore barrels ,these barrels absolutely can ,and do compete head to head with barrels on the market that are priced far higher.the best customer service hands down.


  3. Barrel review 5 Star Review

    Posted by on 8th May 2018

    Very well made.......installed perfectly.

    Quality product IMHO.


  4. A good inexpensive barrel 5 Star Review

    Posted by on 19th Mar 2018

    While expensive good barrels are easy to find, trying to find a good barrel under, say- the $200 price point is not so easy, as I found out. I ordered what appeared to be a good barrel from a large eBay supplier only to have the barrel fail headspace check- and its replacement as well! My local gunsmith recommended Green Mountain as their go-to source for people looking for affordable barrels, and I'm very happy with this purchase!
    Besides, I know they've been around a long time, having ordered a barrel from them back in the '70's!


  5. As good a barrel as you can get at a very fair price 5 Star Review

    Posted by on 14th Mar 2018

    First off I'm in law enforcement and I'm extremely picky. If a rifle wont shoot 1" groups at 100 yards I don't even want to mess with it. I ordered my first Green Mountain barrel for an AR-15 SBR. It was their 10" barrel and I was blown away by it's accuracy. It shot right at 1" groups at 100 yds with 62gr Lake City Green tip!!!! I couldn't believe it and was absolutely not expecting that. It shoots .5" to .75" groups with a hand loaded Sierra Match bullet and I'm sure it's capable of more if I took the time to refine the load. I've recommended these barrels to several other friends and fellow officers and they have had the same experience I have had. We just ordered four 16" barrels for some upcoming AR-15 projects and I know they won't disappoint. Do Not go spend crazy money on "high end" over priced barrels. These Green Mountain barrels are "high end" in my opinion without that "high end" price. Customer for life!!!!!


Previous | Showing reviews 6-10 of 68 | Next