$56.99
33 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
A gas block does not get the attention that triggers or optics do, but it is one of those parts that quietly makes or breaks how your rifle runs. Sons of Liberty Gun Works built the GB-750 V2 to be a set-it-and-forget-it piece, cut from 4140 heat-treated steel so it expands and contracts at the same rate as a Chrome Moly Vanadium barrel. That thermal match matters when the barrel heats up during longer strings, because it helps keep the block seated and the gas port lined up where it should be. The .750 inner diameter fits the majority of mil-spec AR-15 barrel profiles, and the low profile shape slides right under free-float handguards.
The big change with the V2 is that SOLGW removed the handguard cap gap, letting the block sit flush against the gas journal shoulder. That means a more secure, repeatable fit and one less variable to fuss over during a build. It fastens with knurled head set screws that bite cleanly into a dimpled barrel, with .425 inch set screw spacing, and it comes ready to be pinned if you want the most permanent install you can get. The black nitride finish brings surface hardness and corrosion resistance, so it holds up to heat and the elements without much babying.
Worth knowing before you order: your barrel gas journal needs to match at .750, and this is a non-adjustable block, so it is meant for a properly tuned gas system rather than dialing pressure up or down. Builders running SOLGW barrels and other quality contours report a genuinely tight, hand-fit feel, sometimes tight enough to want a rubber mallet during install, which is a good sign when it comes to a gas seal. Note that the gas tube is sold separately since tube length varies by gas system, so grab the right one for your setup.
Whether you are assembling a fresh upper or swapping out a block that never sealed right, this is a dependable, no-drama choice from a company that made its name building AR-15s that just run.
No, the gas tube is not included with this gas block. Tube length changes depending on whether you are running a carbine, mid-length, or rifle-length gas system, so you will want to order the correct tube separately for your barrel. The block itself ships with its knurled head set screws.
This block is built for barrels with a .750 gas journal, which covers most standard mil-spec AR-15 barrel profiles. If you are running a lightweight or pencil barrel, double-check your journal diameter, since some of those are .625 and would need a different size. Matching the block to your journal is the key thing to get right.
No, this is a non-adjustable, low profile block. It is designed for a properly tuned gas system rather than letting you dial pressure in or out. If you need to fine-tune gas flow, you would want an adjustable block, but for a standard reliable build this fixed design keeps things simple.
Yes, it comes ready to be pinned for the most secure install possible. Out of the box the knurled head set screws lock into a dimpled barrel and hold well on their own, but pinning gives you that extra peace of mind for hard use. Many builders run the set screws with a thread locker and call it good.
| UPC | 691821296101 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GB750V2 |
| Product Type | Gas Block |
| Model | |
| Color | Black |
You must be logged in to post a review.
Reviews
There are no reviews yet.