A .750″ gas block size refers to the diameter of the barrel journal where the gas block is installed, most commonly used with standard-profile AR-15 and AR-10 barrels. This gas block size is designed to regulate gas flow for reliable cycling and is compatible with .750″ diameter barrels, gas tubes, and related upper receiver components. It’s popular among builders for its versatility and is the most widely used size for modern AR-platform rifles.
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16″ AR-15 Rifle Kit – 15″ Slim Keymod & 80% Lower Receiver, Titanium Blue
Original price was: $559.00.$419.95Current price is: $419.95.In stock
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Flat Dark Earth 16″ Kit 5.56 15″ Slim Keymod with Lower
Original price was: $559.00.$419.95Current price is: $419.95.In stock
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20″ 1×8 NATO Upper Assembled 15″ M-LOK – Black
Original price was: $329.00.$269.95Current price is: $269.95.In stock
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Tungsten Grey 16″ Rifle Kit 5.56 with 15″ Keymod with Lower
Original price was: $559.00.$419.95Current price is: $419.95.In stock
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AR-15 Rifle Kit complete with 12″ M-Lok Handguard 1×8 NO Lower – Black
Original price was: $499.95.$329.95Current price is: $329.95.In stock
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16″ AR-15 Rifle Kit with 15″ Slim Keymod with 80% Lower Receiver – Burnt Bronze
Original price was: $559.00.$419.95Current price is: $419.95.In stock
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AR-15 Rifle Kit 15 inch Keymod 1 x 7 Upper Assembled NO 80% Lower
Original price was: $519.95.$279.95Current price is: $279.95.In stock
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16″ Flat Dark Earth Rifle Kit 5.56 with 12″ Keymod with Lower
Original price was: $559.00.$409.95Current price is: $409.95.In stock
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7.5″ 5.56 1×7 Pistol Kit Upper Assembled with 80% Lower
Original price was: $459.00.$425.95Current price is: $425.95.In stock
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16″ AR-15 Rifle Kit with 12″ Keymod with Lower – OD Green
Original price was: $559.00.$409.95Current price is: $409.95.In stock
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10.5 AR15 Pistol Kit 10″ Quadrail Upper Assembled With 80% Lower
Original price was: $449.95.$299.95Current price is: $299.95.In stock
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7.5″ 5.56 Flat Dark Earth Pistol Kit with Lower
Original price was: $499.95.$359.95Current price is: $359.95.In stock
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16′” AR-15 Rifle Kit with 12″ Slim Keymod with 80% Lower Receiver – Burnt Bronze
Original price was: $559.00.$409.95Current price is: $409.95.In stock
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10.5 inch Stainless Steel 5.56 Nato Barrel
Original price was: $119.00.$94.99Current price is: $94.99.In stock
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7.62×39 Stainless Steel 16″ Barrel
Original price was: $139.95.$49.95Current price is: $49.95.Out of stock
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20″ 308 Rifle Kit 15″ Free Float Keymod Rail
Original price was: $609.95.$561.95Current price is: $561.95.Out of stock
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Zombie Green 16″ Rifle Kit 5.56 15″ Slim Keymod with Lower
Original price was: $559.00.$419.95Current price is: $419.95.In stock
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16″ Magpul Rifle Kit 15″ Keymod Assembled WITH 80% Lower
Original price was: $579.95.$399.95Current price is: $399.95.In stock
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10.5 AR-15 Pistol Kit 10″ Quadrail Upper Assembled No 80% Lower
Original price was: $429.95.$269.95Current price is: $269.95.In stock
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Titanium Blue 16″ AR 15 Kit with 12″ Slim Keymod with Lower
Original price was: $559.00.$409.95Current price is: $409.95.In stock
