Yankee Hill Machine Low Profile Gas Block - .750 - Set Screw Style

A little loose on the barrel. Roll pin hole was a little oversized.

A little tight fit on my recently purchased Spikes TacticalST- FN Cold Hammer Forged 14.5 Mid-Length Barrel (5.56). Just had to use a little lube. Does as advertises.

A perfect fit! I would deff buy this again!

Always competitive and fast shipping!

Another great product i have used in the past! PrimaryArms came through again with quick service and exactly what i needed!

Another great product of YHM. I have used these on two builds and not a problem with installation or function. Thank you Primary Arms for having the best stuff for great prices.

Awesome customer service, fast shipping, great quality gas block. Really low profile, goes right together fits like a glove.

awesome experience as always from primary

Barrel measured .751. Gas block was to tight to fit on even with hitting it with a block of wood. I had to ground the inside diameter out to get it to fit. In all fairness I had the same problem with a different brand of gas block (Troy) bought at Brownels. Brownel gun tech suggested using an abrasive cloth to reduce the diameter of the BARREL which was a match White OAK barrel. Dumb idea imho. Rather butcher $25 gas block. Finally got it to fit but scratched it up and a crumby job.

best low pro gas block for the money, this is my third one. I love when functanality comes this cheap.

Block was right on spec and even has a slight chamfer to the gas port hole to insure reliability. Good all around block.

Bought these parts for my next AR build.Have not completed yet but all items are in good shape so don't anticipate any problems.Extremely pleased with the customer service.Ordered my parts at noon and by 1 they were ready to ship.Received them at 1 the next day!Hard to get that kind of service any more,sad to say.Very pleased.

Can't ask for a better price and quality, I have it on mp 15 mid moe and so far is doing great. Highly recommend

Can't beat the price.

Decent block for the price.

Easy install, looks good, does it's job

easy to install

Everything from price to customer service is better than anywhere else on the net.

Excellent craftsmanship at an affordable price. Shipping and communication was great!

excellent price and as ALWAYS, within a few hours, conformation e mail of buy and ALWAYS the same day shipping, I have purchased probably 20 items from them and they are bar none the best parts place online there is, lots of shipping options also.I highly recommend for anything they sell.

Fit my Stag Arms H1 m4 profile barrel easily yet snugly. Plenty of clearance under a BCM kmr 15" rail.

Fits great, finish is good, would buy again.

Fits nice and tight. Very low pro. Fits under Larue rail

Fits the Radical SOCOM profile barrel very well. Fits underneath the Midwest SS Gen 2 Handguard.