AR-15 BARREL 5.56MM NATO GOVERNMENT

AR-15 BARREL 5.56MM NATO GOVERNMENT Reviews & Ratings

This genuine Colt 11.5" Heavy Profile Barrel epitomizes modern warfare’s need for speed and mobility - AND it’s ready to install on your next AR-15 pistol or SBR. The barrels is forged from ordnance-grade carbon steel, with a chrome-lined bore and chamber, plus a traditional matte black Parkerized finish. The Colt 11.5" Heavy Profile Barrel comes with the barrel extension, M4-type (round) front handguard cap, and front sight tower/gas block ALL installed. The gas port is drilled for a carbine-length gas tube - giving you an extra measure of reliability in a pistol build.

  • 1-7" rifling twist
  • 1/2"-28 tpi muzzle threads
  • Front sight tower/gas block has bayonet lug
  • Front sight post IS included
  • Carbine-length gas tube not included
  • OAL of entire assembly: 12-1/8"
  • All NFA rules apply

Built with compatibility in mind, Colt’s 11.5" Heavy Profile Barrel fits any standard "mil-spec" AR-15 / M16 / M4 upper receiver, and it’s chambered for 5.56x45mm NATO, so it will also safely fire civilian .223 Remington ammo as well.

See all of our AR15s and AR15 parts here.

View Product
Write a review
Reviews Summary
The AR-15 Barrel 5.56mm NATO Government receives mixed reviews with highlights on its accuracy and quality. However, issues with the barrel nut and feed ramps lead to significant concerns. While customer service is praised for responsiveness, some users report unfortunate manufacturing flaws, especially regarding machining and assembly.
What Reviewers Are Saying
Product Quality
65%
Reviews often mention the high quality and accuracy of the barrel, with some users praising its performance and tight tolerances, which contribute to excellent shooting results. This quality aligns with Colt's reputation in the industry.
Manufacturing Issues
60%
Several reviewers express concerns about manufacturing defects such as improperly machined feed ramps and poorly designed barrel nuts. These quality control issues have led to dissatisfaction among users who had to replace components, highlighting a gap in the production process.
Customer Service
50%
The customer service experience is notably positive, with users reporting quick and helpful responses to issues, including warranty claims and replacements. This support has helped alleviate frustrations caused by product defects.
Value for Money
40%
Some customers comment on the priceiness of the barrel, but many believe the accuracy and overall performance justify the cost, asserting that it offers good value for the quality of the product.
Shipping and Packaging
35%
While shipping is generally described as fast and packaging adequate, some users noted that initial delivery experiences varied, indicating room for consistency improvement in this area.
1
ABSOLUTE JUNK !!
Received this 11.5" Colt heavy barrel in mid-September 2021. It has two MAJOR problems. FEED RAMPS: Someone decided to "open up" the factory machined feed ramps AFTER the barrel had been parkerized. This was most likely done after final inspection caught a bad initial feed ramp machining job. There's no other VALID reason someone would re-machine the feed ramps AFTER parkerizing UNLESS the feed ramps were found to be poorly machined upon final inspection after parkerizing. HANDGUARD END CAP: Not pinned to FSB. If you check your ORIGINAL Colt rifle, carbine, or Title II Colt you'll find a tiny pin holding the front handguard cap to the rear of FSB. In my case the cap wasn't pinned to rear of FSB. That means the cap spins 360 degrees around the barrel axis. Which means my Colt CAR handguards will spin and put pressure against the gas tube. Brownell's is sending shipping label and will refund this purchase. Meanwhile, I backordered ANOTHER one of these. If problems on that, will report them here. *** NOTE *** The SAME FEED RAMP PROBLEM as this was also on a Colt 14.5" M4 (govt profile) barrel I bought from Brownell's at same time I bought this barrel. See my review and pictures under the "Colt 14.5" barrel product.