Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

Reviews by Zummy74

Show
Sort by
Filter by

Works great for my AR-9

Written on Feb 18, 2019

I got this for my AR-9 pistol build and can't be happier. I was able to break it down and into a 16" wide hard case, my Go-case. The problem with the AR-9 is that it doesn't have the gas block to keep the collar from moving from the base of the barrel to the muzzle device. I had to buy a "barrel stop" to make the install faster and now my barrel only slides up to about an inch.

I had to adjust the pin that ratchets the handguard. The unit that I received, the pin was still protruding that it's still catching on to the teeth of the base. I was able to adjust the pin by manipulating the screw in the pull-down release.

My pistol remained zero after removal and install of the Dolos. I'm happy I got this. I may get this for my AR-15 pistol build as well.
There are no reviews that match your criteria. Would you like to reset filters?
Last updated 2026-11-04 UTC.