CMMG

Cmmg Ar-15 Gas Block Assembly, Low Profile, .750

Cmmg Ar-15 Gas Block Assembly, Low Profile, .750 - Gas Block for AR-15 - view 1
Cmmg Ar-15 Gas Block Assembly, Low Profile, .750 - Gas Block for AR-15 - view 2
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Overview

The Cmmg AR-15 Gas Block Assembly is a low profile component designed for a .750-inch gas block diameter, making it a reliable choice for standard gas systems. Constructed from steel and finished with a nitride treatment, this gas block effectively channels gas from the barrel to cycle your action while maintaining a streamlined profile that fits under handguards without adding bulk. This assembly is often found in builds utilizing a carbine gas system, particularly for those chambered in 5.56 NATO.

Specifications

MPN55DA38D
MaterialSteel
Gas Block Diameter.750
AdjustableNo
FinishNitride
ProfileLow Profile

Available Merchants(11)

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Frequently Built With

Based on build data

Frequently Built With Products
ProductCategoryTimes Built Together
Bravo Company M16 Bolt Carrier Group Black6
Cmmg Ar-15 Forward Assist Kit6
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B4
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M44
Radian Forward Assist - 7075 Aluminum - Black3
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length3

Builds Featuring This Part

See all 8

Builds in the community that include the Cmmg Ar-15 Gas Block Assembly, Low Profile, .750

BuildPartsTotal
Aero precision 16" 5.56
22$1457.97
Second 5.56 build
20$817.94
Aero Precision 16" 5.56
19$3778.42
Second build
17$1811.29
aero precision 18" 5.56
15$2647.05
for hd 12.5"
19$1287.12
16" build
17$2185.80
For home defense 16"
24$3129.86

Customer reviews

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Top reviews

S
SleazyGoyim
CMMG .750 LP block drops in
Reviewed on April 18, 2026Verified with Build

CMMGs low profile .750 gas block fits under standard free float handguards. Set screws engage the dimple on a properly dimpled barrel. Black phosphate finish. Aligns easily with the gas tube. Solid budget gas block.

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