criterionbarrels

That's perfect for our M118 LR chamber option. It's designed to best accommodate the 168's and 175's. We generally run that chamber on our Hybrid contour and ADM designed barrel options. Feel free to shoot us an email at contact@criterionbarrels.com if you would like a copy of the reamer print. http://criterionbarrels.com/products/adm-nitrided-308-ar-barrels http://criterionbarrels.com/barrels/.308_AR/ar-10-hybrid

Something like our 16" rifle length Hybrid contour model (1016S-HYR)? http://criterionbarrels.com/products/ar-10-hybrid We also manufacture two 16" rifle length models for American Defense MFG (salt bath nitrided). https://www.americandefensemanufacturing.com/view/product/1232/

SteveinUT, just a heads up for future build projects: Criterion offers a military/law enforcement discount on factory direct sales as well!

Generally our chrome lined barrels shoot sub-MOA with factory match ammunition, and are capable of half-MOA performance with handloads tailored to the barrel. Component selection normally comes in to play with those performance standards, as does the shooter, but if you find yourself shooting groups greater than 1 MOA with a variety of loads, feel free to give us a call and we'll help troubleshoot, repair, or replace the barrel if necessary. .308 AR builds can occasionally be tricky, but we're always happy to help get them dialed in! Also worth noting, the OD on our .308 AR barrel extensions measure out at about 1.185", so it may be worth contacting the receiver manufacturer to verify the ID of your receiver to verify a good fit. Tolerances vary between different receiver manufacturers, but we have had positive feedback regarding receiver fitment on a variety of different receiver models. If you have any questions about our barrels, feel free to give us a call or shoot us an email at contact@criterionbarrels.com. I would be more than happy to help answer them! -Josh

The Hybrid contour design was introduced as a good general purpose option. Unless you're planning on running a half dozen magazine dumps and then need to shoot .5 MOA groups at extended ranges, it should have enough material thickness to keep your groups pretty tight. I've been running a few different Hybrid contour barrels on my personal builds, and have noticed no significant change in group size after a couple magazines emptied with a sustained rate of fire. Feel free to shoot me an email at contact@criterionbarrels.com if you have any other questions. I'd be more than happy to help answer them! -Josh

American Defense MFG recently added a selection of Criterion-manufactured nitrided .308 AR barrels to their product list. Included in the updated models are a mid-length 14.5" model, a 16" rifle length model (with a Hybrid contour), and a rifle length 16" model with a Heavy contour. Introductory pricing for these barrels is $305.95. Other models are also available in .223 Wylde and .300 Blackout. .308 AR Barrels https://www.americandefensemanufacturing.com/view/product/1232/ .223 Wylde Models https://www.americandefensemanufacturing.com/view/product/1225/ .300 Blackout Models https://www.americandefensemanufacturing.com/view/product/1229/

If enhanced corrosion resistance is a factor, then you might want to look into a chrome lined (to protect the bore) or nitrided (to protect the interior/exterior of the barrel) option. For packing in the field I'd recommend a mid-weight model like our Hybrid contour. That should keep you sub-MOA all day, and won't drag you down after the first couple miles of slogging through the brush!

There's nothing to lose if you go the Criterion route. If you wind up running into any function issues, we'd be more than happy help troubleshoot and repair (or replace) the barrel if necessary.

You do not need to be a dealer to purchase directly from Criterion. Just give us a call at (262) 628-8749 and we'll help get a barrel allocated to your order!

The weight on the pictured prototype barrel is 2.40 lbs with a .750 gas block. We ran about a dozen different loads through it to test various gas port diameters, and it looks like we found the sweet spot. I don't believe we have any nitrided barrels in production (in that configuration), but there is always the possibility that we could add them at a later date.

Those 16" rifle length .308 AR barrels are just about ready!

20" models are now available from Midwest Industries with a Magpul PRS stock. That would make for a phenomenal DMR build project!

The new models are all Hybrid (mid-weight) contours with a .750 gas block. For weight we're looking at: 2.35 lbs for the 16" models 2.55 lbs for the mid-length 18" models 2.60 lbs for the rifle length 18" models 2.85 lbs for the 20" models 3.45 lbs for the 22" models

Midwest Industries is getting their feet wet in the .308 AR world with their new MI-10 line of rifles. We put together a little sneak peek blog post if you'd like to take a look! www.criterionbarrels.com/media/midwest-industries-mi-10-announcement