Aim Sports Zero Hour Micro Gas Block - .750 standard AR/M4 barrels

12

| Write a Review

Ratings Snapshot

4.9

out of 5

5 (11)

4 (1)

3 (0)

2 (0)

1 (0)

Would recommend this product.

100%

SKU: 136-AIMS-ZH-MGB01
UPC: 815879014795
MFG#: ZH-MGB01

I upgraded my M&P 15 to a free float configuration, and this low-profile gas block was the one I chose. The fit was perfect, without a single scratch on the barrel, and the pin for the gas tube was easy to insert. After completing the upgrade, I took my M&P 15 to the range and fired over 1000 rounds without encountering any issues. Investing in a low-profile gas block like this one is worth it, as you truly get what you pay for.

I utilized this gas block to free float my Ruger AR556, and the installation was seamless and hassle-free. It even came with a new roll pin, although I opted to use the old one I had. Everything aligned perfectly, and I haven't encountered any issues since installation and use. Next time I clean the rifle, I'll remove the free float handguard to inspect the screws. Although I applied blue Loctite to the screws and am confident they won't budge, I'll still check them for added peace of mind.

This gas block is available at a fantastic price and functions well—no need to spend excessively on a gas block! Many AR parts are similar to cars: a fancy name may cost more, but they all serve the same purpose, getting you from point A to point B. These gas blocks will work perfectly for all builds! There's no need to waste money in today's world, as it's hard enough to come by.

I've purchased several of these gas blocks for my ARs, and each one has performed flawlessly. The value is quite impressive. I highly recommend this gas block for budget builds or for those who aren't ready to invest in an adjustable gas block just yet.

This gas block is essentially what you'd expect. The quality and finish are both good. In most cases, it will be concealed under the handguard, so appearance isn't a significant concern. Nevertheless, it isn't unattractive. Since it's made of steel, it's likely to outlast the rifle itself. In summary, if you need a gas block, this model should serve you well.

This gas block is fantastic. It's both low-cost and low-profile, fitting the barrel perfectly and offering an incredibly easy installation process. It worked seamlessly with my new 15" free float handguard, providing perfect clearance during installation and an excellent appearance. With two set screws included for a secure fit to prevent any movement, I also added blue thread lock for extra stability. This gas block is definitely not going anywhere.

It's hard to find a better deal than these AIM gas blocks for the price. I've used numerous ones, and almost all of them have been trouble-free. Considering the price range, I wasn't shocked to encounter one with a quality control issue. I attempted to clean both the tube and pin holes, but they must have been out of spec. Nevertheless, having nine out of ten gas blocks without issues is still quite impressive, especially when building AR's on a budget.

This low-profile gas block is excellent all around, and I would recommend it to anyone in need of a well-crafted, reliable gas block that requires no adjustments for semi-auto or binary triggers. I used it with the Echo Sport, and the performance has been fantastic. This gas block allowed me to install an aftermarket Trybe Industries quad rail, which also worked perfectly, making it my favorite weapon for practice. The cycling is exceptional, and I haven't experienced a single malfunction despite firing hundreds of rounds. The fit and finish were perfect, and I appreciated that no tuning was needed for the gas system to function flawlessly. Moreover, the unbeatable price is on par with the exceptional build quality. I was genuinely impressed with the CNC work and the overall appearance of the gas block, which can be seen through the M-LOK holes. Together with the Trybe Defense rail, it looks like a brand-new build. Everyone who sees it appreciates the aesthetics and performance. Aim certainly manufactures superb gas blocks, and this one even features an adjustment to add or remove gas for cycling. However, no adjustment was necessary – simply bolt it on, install the rail and flash hider, and you're good to go. It's proven to withstand rigorous use, so there's no need to spend a fortune when this gas block offers unbeatable build quality and functionality.

I fitted this gas block on an FNH AR as a replacement for the A2 sight to accommodate a floating handguard. Initially, I was skeptical because of the low price and had previously opted for a more expensive low-profile gas block. However, the finish was consistent, and the fit was snug yet smooth. There were no issues installing the gas tube, and after firing a few hundred rounds, I haven't encountered any problems. I wouldn't hesitate to purchase another one in the future.

This gas block performs its intended function perfectly. All non-adjustable gas blocks should be this affordable. The fit was excellent, and while the finish was satisfactory, it wasn't particularly noteworthy. It came with two set screws and a roll pin, making it a complete package.

The installation process was smooth, and the shooting experience has been exceptional. This is an efficient solution for replacing the standard A-post front sight and pairing it with a free-floating handguard. I experienced no issues whatsoever, and when combined with the AIM Sports Inc AR/M4 MLOK Handguard, both components fit together seamlessly. Plus, this upgrade was quite budget-friendly.

Excellent quality micro gas block for the price all-around good company I have bought a lot of parts from them and have not had any issues