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Questions & Answers
Does it fit colt m4a1 barrel?.and can I use it to pin the barrel Instead of using jig? Expert Answer

This will not work with the Colt M4A1 barrel.

by Tom B, Gear Expert, September 11, 2021
Is this gas block adjustable?

It is not adjustable.

by El Redo, Verified Owner, July 20, 2019
Customer Reviews
Helpful Positive Review Great gas block by Drawde40599, July 17, 2020
They don't actually have this gas block in stock, limited availability is 100% a LIE they are selling things on this site that they don't actually have, and the ETA for this product is October. Then they are using the Corona virus as an excuse on w...
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16/20 found this helpful
Helpful Positive Review Geissele Low-Profile Super Gas Block Nitride Coated 05-807N by Marty, Verified Owner, December 3, 2020
The Geissele Super Gas Block Nitride Coated part number 05-807N is the newest version of their super gas blocks, is the only gas block Geissele sells directly. This LPGB has a lower profile than their 1st generation super gas blocks. This super low p...
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1/1 found this helpful
Helpful Negative Review Good gas block by Gonz9731, March 16, 2017
Not much to it. Fit: Somewhat low profile. Fits under Geissele Mk8 with no issue but clearance on the bottom of the block where the "Super" pin channel is close. So use caution in builds other than Geissele rails. It may interfere, it may not. Fi...
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1/1 found this helpful
Most Recent Reviews Excellent product by Nick, July 25, 2019
Great characteristic geissele fit and finish. Very low profile, and an even nitride coating. Looks great in an all black at build and is pretty reasonably priced in my opinion. I would recommend to anyone.
0/1 found this helpful
Most Recent Reviews geissele super gas block by Devin, Verified Owner, October 24, 2020
Gas block works perfectly. Fits on snug with no leakage. This is the second one i have bought just for the fact it can be pinned. There is no way this block is comming off unintensionally. Security of an a2 post but works with freefloat. Perfect pro...
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Most Recent Reviews Solid mount, typical Geissele quality by TO, Verified Owner, May 10, 2020
My preferred non-adjustable gas block. Nice nitriding, snug fit, with the option to pin if you want to. A little pricier than the standard stainless version Geissele offers, but looks better on an all black build.
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Color: Black Gas Block Journal Size-Diameter: .750 inGun Make: AR Platform Gun Model: AR-15 Condition: New Finish: Black Nitride

Code: 1TO-RGB-05-807N

MPN: 05-807N

UPC: 854014005274

Product No Longer Available

Product Info for Geissele Super Gas Block Black Nitride Coated

Bore of the super gas block is machined to closefuly fit around 0.750 inch diameter mounting bosses found on most M4 carbines and AR-15 rifles.image

Magazine and Accessories

121 / 21
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Gun Triggers

116 / 16
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Gunsmithing Tools & Accessories

114 / 14
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Gun Parts and Accessories

130 / 30
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Gun Barrels

113 / 13
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Gun Sights

119 / 19
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Gun Stocks

117 / 17
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Mounts, Rings and Accessories

117 / 17
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List of Unorderable Models

Geissele Super Gas Block Black Nitride Coated , MPN: 05-807N , UPC: 854014005274 , Code: 1TO-RGB-05-807N
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