Seekins Precision Low Profile Adjustable Gas Block - .750 - Set Screw Style
This side-adjusting set screw allows the user to readily change gas pressure, in some cases, directly through the hand guard. Lock the desired setting in place with the front facing nitrided set screw.
Steel construction and a durable Melonite finish help reduce erosion of the gas block allowing for a longer service life.
- Set screw style mounting
- Salt bath nitride finish
- Overall height: 1.37"
- Width: 0.94"
- .750" gas seat diameter
- Just 1.8 oz
Ratings & Reviews
AAAAAAAA++++++++++ Great product, fast shipping & awesome seller!!!!! Thanks Primary Arms!!!!!!
Great block at a great price
by Agustin Santayana
All steel block that's adjustable for this price hard to beat. The adjustments are easy to do and the lock screw is nice feature, I still thread lock it though. I have two one on a DPMS style LR-308 and a AR-15. Both are flawless.
Seekins rear adjustable gas block
by Darien Durr
Although the price and the looks are a five stars, the way to make adjustments and the location of the set screws are not compatible with my 7.5" pistol barrel (1 star). There is no access to the brass screw whatsoever. You would need to put this on a longer length barrel or adjust it as you take it off after every shot. I will save this for another build and reevaluate my review. In the mean time, I will be looking for another one to use with my ar pistol.
Adjustable Gas Block
by Mike Jackson
As advertised, small profile with a brass set screw to lock gas adjustments in place. I could easily reach the gas adjustment screw through my front handguard. It was harder to reach the set screw but doable. Easily fit under the Troy handguard. A quality product shipped very fast from a quality provider.
As away Seekins parts are very nice
by Claude Russell
Besides this item I have a forge upper lower and Billet upper and lower for Seekin. I found these product to be very good.
get the adjustable block.
Best price for this brand I could find anywhere.and then 15% off that price! Always get an adjustable block if you are shopping for one.
Adjustable Gas Block
by josh tupper
Bought the wrong size on an accident and man am I glad I did. I kept it and put it on my 300 blackout barrel and I love it. When I do my next build I'll order another of these.
A pretty good deal but......
by Charles Bales
Can't beat it fir the price . I have a easy to remove and replace hand guard so once I got it set it was ok .I just left the hand guard off until I had everything adjusted the way I wanted. It would be much better if adjustments were on the front of the block ....but for the quality and price I can put up wit removing my hand guard
by Taylor Nieves
Easy to maintain,install,and set.works beautifully for the money.
Fast shipping and good condition.
by Jeremy Bledsaw
Great piece, looks great and functions well, customer service and hospitality is top notch
Gas block .750
by Kristi O'Kelley
Great Product. Would recommend to everyone that needs an adjustable gas block. Great price point!!
Muzzle Brake You Had It
by Lawrence DeBacker
I am always glad to visit your site because when I go there so is what I am looking for! I was looking for a Seekins Precisions Low Profile Adjustable Gas Block .750 and you had it. Enough being said you guys are the tops in my book when I am looking for what I need in weapons supplies!!
Fixed my 300AAC Blackout
by Lucus Graham
I purchased a 300AAC Blackout upper a few months ago and right out of the box I was getting double feeds, failures to extract and cycling issues. I figured it was a gas block issue and when the manufacturer was unable to fix these issues, I took matters into my own hands. I purchased the Seekins Precision adjustable gas block to see if it would resolve the cycling issues. All I can say is that my 300 blackout is now a flawlessly reliable weapon. I was getting a jam about ever 2-3 rounds before installing the adjustable gas block and I fired 100 rounds the other day without a single jam. I could not be more pleased with the fit, finish and functionality of this product. It worked so good that I now have my father wanting me to fix his. I highly highly highly recommend this product!!! Not to mention the price and service of Primary Arms is second to none. Donâ€™t hesitate, buy this gas block!
My first adjustable gas block.
I was impress with the quality of this product. It was a little tight on fit, so I took a small sheet of 400 grit sand paper rowed it and sand the inside diameter for about 60 seconds and it fit great. I have not yet put any rounds through it, but I am confident it will work great after adjustment. Primaryarms is my number one online shopping store. I build six rifle for me and friends with 90% parts coming from this company and currently building two more. They have very fast shipping. Great customer service. And If your not satisfy with the product they give you the option to return back your cash or store credit With no restocking free. Primaryarms rock baby.
I was in the market for an adjustable gas block,but wasn't in the mind set to spend $100+ on one. I knew seeking reputation for creating a good product, so I decided to give this a go. I'm actually quiet happy I did, this thing worked flawlessly, and the finish on it is extremely nice. If you're in the market for a adjustable gas block, don't let this low price tag fool you. This is an awesome product that works extremely well.
by Ron Conway
I was so happy when I found that Primary Arms actually had the gas block in stock. What really amazed me was how fast I got it.
Nice product and great service from PA
I'd never ordered from PA before but will again if the opportunity arises. Delivery was prompt, especially given the general frenzy at the time my order was made.The gas block is well-engineered and well-made as you'd expect from Seekins. I did find out, however, that with some barrels, the brass set screw may be obscured. The idea behind using brass is that it will still allow a few on-rifle adjustments. But depending on the barrel, you may need to loosen and remove the gas block to retighten the set screw.
Nice gas block, no matter the price.
by James McPherson
I'm not used to seeing inexpensive Seekins anything, but this gas block is well below the price of its competitors, yet retains the well done machining and high quality one expects of Seekins. I'll be buying more of these.
Low Pro adjustable gas block.750
by Russell Holmes
In stock. Competitive price. One of only two places I could find them available right now.
by Seth McKay
Not very easy to adjust after installation. Wish the adjustment setscrew was on the other end (towards muzzle), but fit well.
Purchased this for my 18" rifle-length gas 3 gun AR. While I would prefer a set-screw to be on the front, my free float tube is very easy to remove and reattach. Combining this with a low mass bcg, emptying out the carbine buffer, and making reduced power loads I do not come off of target during rapid fire.
Very Poorly Designed
The adjustment screws are on the wrong side of the gas block! They're on the back side where the gas tube exits! Most people purchase a low-profile gas block for free-float hand guards where the gas block is partially or completely covered by the guard. If it's even partially covered, you can't make adjustments to the gas block without removing your hand guard! The adjustment screws should be opposite the gas tube so you can reach in the open end of the free float guard to make field adjustments. Nice styling and finish, but horrible design! Don't buy it unless your hand guard is shorter than your gas tube.
Beware of the lock screw location!
The brass lock screw is on the rear of the block and the adjustment screw is on the side. They may not be accessible on some handguards without disassembly. And the brass set screw came loose after shooting 100 rounds. It is nice to tune the gas system instead of the buffers and springs.
by Shooter J
The gas block has an additional brass screw that helps lock down the adjustment screw.I love how compact it is!