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DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte

Product #: 793138 DPMS #: GB-SR7

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$28.99

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Product Information

Aircraft aluminum gas block with Picatinny-style rail to mount detachable laser sights, flashlights, etc. Hardcoat black anodized aluminum. Requires fitting and installation by a qualified gunsmith. Matte.

Technical Information

Material:

Anodized Aluminum

Notes:

Single Picatinny Rail Gas Block .750" Diameter.

Gas Block is 2" long

Application Charts & Information

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Customer Reviews

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REVIEW SUMMARY

by PowerReviews

DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte

4.0

(based on 11 reviews)

Most Helpful Positive Review

Good looking black matte ...

Good looking black matte finish with 2 set screws on the bottom. Gas tube seated without any free play. This would be my choice for the next upper I build.

Most Helpful Negative Review

This is the gas block ...

This is the gas block that comes standard on the DPMS Oracle AR15 platform. The issues I have been having is that the gas block is very loose on the barrel and when everything heats...Read complete review

This is the gas block that comes standard on the DPMS Oracle AR15 platform. The issues I have been having is that the gas block is very loose on the barrel and when everything heats up in use, the set screws fall out, the gas block wobbles around, and the rifle no longer cycles properly. I have tried every color loctite I can find, I even paid $100 to have a reputable gunsmith pin the block to my barrel, but it still begins wobbling around after it heats up, reducing my AR to a single shot. And to top it off, the gas block remains loose and wobbly even after everything cools down again. In my opinion I think this is due to several factors. I either got an improperly made gas block and/or barrel on my rifle from the factory, or the steel barrel and aluminum gas block simply expand at different rates when heated. Going to order a steel clamp on style gas block. Hopefully that will get my AR functioning like it should.

Reviewed by 11 customers

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Displaying reviews 1-10

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11/27/2012

5.0

An Outstanding Block

By Mark

from Fillmore, UT

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

I was completing a mass build for a customer. I ordered 4 of these to complete the barrels. They all went on smoothly and easily. No problems with functioning or coming loose. A little blue locktite on the barrel before sliding the gas block on and tightening it down helps keep it in place.

11/23/2012

(1 of 1 customers found this review helpful)

5.0

An excellent product

By Mark

from Fillmore, UT

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

I bought four of these to use on four stainless barrels I was building into uppers for a customer. After purchasing similar looking blocks from the place with smiley faces on boxes and having to return them, I was a little concerned about how these would work. They went on with no problems and the guns functioned perfectly with whatever load I tried. I prefer using these over the front sights that have to be pinned in place. These make for a simple and easy conversion to a true flat top upper.

1/8/2012

(4 of 6 customers found this review helpful)

1.0

This is the gas block ...

By Richard

from Mesa, AZ

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

6/16/2010

3.0

Block is good, price is ...

By REECE

from NEOSHO, MO

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Block is good, price is good, but not same plane as standard a3 upper. If you plan to put sights on this be sure you have a raised front sight. Block works good but could be little lighter too. GETS HOT!

3/7/2010

5.0

Fit great and was on ...

By Lucas

from Biwabik, MN

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Fit great and was on center and lined up well with port on barrel.

2/25/2010

(2 of 2 customers found this review helpful)

3.0

The gas tube hole is ...

By W

from KNOXVILLE, TN

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

The gas tube hole is drilled noticeably off-center. I am going to see if it will work anyway rather than send it back. DPMS usually is top notch, but I suppose even they let a bad item slip through occasionally. I will chalk this up to a rare mistake.

2/25/2010

(1 of 1 customers found this review helpful)

2.0

Gas tube would not ...

By Dan

from MINOT, ND

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Gas tube would not seat... filed the tube down and it still would not work with several tubes. Item had to be returned for refund.

2/25/2010

(1 of 1 customers found this review helpful)

5.0

Used for 6.5 Grendel ...

By J.

from Sioux Falls, SD

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Used for 6.5 Grendel build. Fits reasonably snug, easy to install. Good finish, well machined.

2/25/2010

(1 of 1 customers found this review helpful)

5.0

Needed a flat top gas ...

By S

from Colorado, CO

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Needed a flat top gas block for my DPMS upper. This product fit my mil spec carbine barrel like a glove.

2/25/2010

(9 of 9 customers found this review helpful)

5.0

Good looking black matte ...

By James

from Garland, Tx

Comments about DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte:

Good looking black matte finish with 2 set screws on the bottom. Gas tube seated without any free play. This would be my choice for the next upper I build.

Displaying reviews 1-10

Previous | Next »

The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.

NOTE: Prices, specifications and availability are subject to change without notice.
We reserve the right to correct typographic, photographic and/or descriptive errors.

DPMS Gas Block Single Picatinny Rail AR-15, LR-308 Standard Barrel .750" Inside Diameter Aluminum Matte

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