JP Low Profile Adjustable AR15 Gas Block System .750 Bore

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On sale: ~~$75.96~~ $71.96

Retail Price:$79.95

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Part Number: 135-JPGS-5B

Availability: IN STOCK

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JP Low Profile, Non-Railed
Adjustable AR15 Gas Block System .750 Bore
Allows tuning the AR15 bolt velocity to reduce bolt slamming, manage recoil, and increase accuracy potential. The JPGS-5B model gas block is our low profile large bore (.750 dia) model with a non-railed design to fit under extended handguards. This model also now includes our locking adjustment feature, which consists of an integral set screw that can be tensioned against the adjustment screw after it has been set to prevent any migration that might occur.

Full coverage around gas port providing improved seal and better heat dissipation
True clamp-on design with four positive clamping screws
Easy to access side gas adjustment
Also available in .936 dia bore
Not recommended for .224 Valkyrie

JP Adjustable gas block

I like that this has block has four clamp screws. It's likely to never come loose but you can pin it if you want to with the included pin and a dimple marking where to drill. The adjustment is easy and accessable thru most narrow handguards.

Reviewed by: Jim from PRINCETON on 5/22/2021

Very Nice

This was my first JP accessory for my AR I ever bought, so I didn't know what to expect. The finish and quality is second to none. I was able to fine tune my rifle exactly where I wanted it. I will be ordering more in the future.

Reviewed by: Christopher S Foster from Nevada on 5/5/2021

Great product/great service.

Processing and shipping was awesome. The gas block is installed and will give a follow up review after range day this weekend.

Reviewed by: Josey Wales from Richmond, Va on 7/6/2020

Mr.

Works great and fits under slim grip, but adjustment can be tricky. Adjust then mount forearm grip if the adjustment does not line up. Bought first one for 300 Blackout SBR this one for 300 Blackout pistol. Can adjust for minimum recoil and maximum silence. Easy install.

Reviewed by: Lauren from TN on 6/27/2017

The product was shipped and arrived in a very timely manner. The gas block works fantastic as all the JP block I have I'll order again when I need to set up another AR

Reviewed by: Richard from Pennsylvania on 11/27/2016

Top teir quality

I ordered this gas block to replace my Anderson adjustable gas block that gave me lots of problems and I couldn't be happier. This thing is built like a tank yet has a wonderful look and exceptional fit and finish. JP definitely delivers the goods!

Reviewed by: Lee from Wisconsin on 10/19/2016

Great Gas Block

Great fit and finish and fully adjustable.

Reviewed by: Alan from Hadar NE on 9/24/2016

Jp gas block

Very nice quality, great price, and fast shipping

Reviewed by: Steve from Louisiana on 9/9/2016

Very solid part, with great fitment and performance. Only complaint is you might have to drill a small new hole in your handguard/forearm to have access to the adjustment screws.

Reviewed by: Michael Duchene from Wetumpka on 8/20/2016

Jp makes quality products.

When I received my jp adjustable gas block i was impressed by the product and packaging. It has a very nice even finish, good looking hardware, and proper fit. It comes in a nice package with the tools you need for installation and instructions. There was a small burr in one of the tapped holes, but it was easily removed and the set screw threaded in fine. Other than that I can't find anything remotely bad to say about it.

Reviewed by: Joe from Ohio on 5/30/2016

Shooting Enthusiast

As with all of JP's products the fit and finish was great and I recieved the part 3 days after I placed the order, not 7 - 10 days like most other sites. The only problem I had was with the gas tube hole, there was some type of what I believe to be tumbling media in it and at first I couldn't get the gas tube in far enough. I took a small drill bit and gently cleaned it out, then everything matched up nice. The weather hasn't been cooperative lately so I haven't had a chance to use it but with JP's reputation I'm sure it will perform as advertised.

Reviewed by: John M from Colorado on 4/28/2016

JP Low Profile Adjustable AR15 Gas Block System .750 Bore

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