Criterion Barrels Stainless Steel 6.5 Grendel Barrel (Options)


SKU: CB-65G Categories: ,


The 6.5 Grendel round is a popular alternative caliber for AR-15 platform owners who want to increase long distance hunting or target shooting performance compared to .223 Remington or 5.56 NATO. Available in 18″ length with either HBAR contour or the lighter Hybrid contour, and 22″ in HBAR contour. Chambers are finished, but barrels should be headspaced and installed by a qualified gunsmith.

* MSR Arms does it’s best to provide high-quality merchandise at great prices. As such, some of the products we offer cannot be discounted further than the listed price using a general discount code. Products such as the one you are viewing can only be discounted further with a product-specific discount code. Please contact us if you have any questions regarding this pricing policy. We are always happy to answer any questions. *

Additional information



Gas System Length


Barrel Length






Mfg Part #: Length: Twist: Gas Length: Journal: Contour:
65G18S-HY12 18” 1-8 RH Rifle Length 0.750 Hybrid
65G18S-HY8 18″ 1-8 RH Mid-Length 0.750 Hybrid
65G22S-HB12 22″ 1-8 RH Rifle Length 0.750 HBAR

MSR Arms Advisor

The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible. There are currently no articles available for this item. If you would like help selecting the right part for your needs, please email our sales team at:


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