.750 Aluminum Gas Block：
Diameter: 0.75 inch
Length: 0.93 inch
Overall height: 1.35 inch
Weight (net): 30g
Install onto 0.75 inch regular barrel and standard gas tube
High quality aluminum alloy in durable black matte finish
.936 Steel Gas Block：
Lightweight, Minimal Profile To Fit Under Tactical Handguards & Free-Float Tubes.
Low Profile Gas Block for AR15, M16, M4, M4A1. Machined of Steel, Bright polish finish, for .936 Gas Block barrels. Manufactured within very tight Mil-Spec tolerances on all ID's.
Slide over the barrel and anchor in position by tightening the two, flush-mounted steel hex screws on the underside use red hi-temp LocTight to insure it wont shift during sustained rapid fire.
Includes Setscrews, roll pin.
Brand Name: ohhunt
Guide Length: Other
Model Number: .936 / .750 inch Gas Block
Guide Type: NATO Accessory Rail
Type: Gas Block
Country of origin: China