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AR-15 Gas Blocks & Tubes

This section contains just what you need in the way of AR-15 Gas Block and AR-15 Gas Tube parts from top name manufacturers like Troy, Yankee Hill Machine (YHM), Fortis Manufacturing and WMD. The two YHM low profile gas block models shown here, both .750", are made with the finest quality steel and have military spec phosphate coatings. One clamps on and the other uses two sets screws. A third YHM AR low profile gas block fits .936" Bull Barrels. It's made from aluminum and has an anodized, black matte finish. All these YHM gas blocks replace your weapon's existing front sight.

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Low Profile Gas Block .625" ID

Our Price: $26.99
In Stock
(2)
RBA - AR15 Gas Tube Roll Pin - 5/64"x 5/16"

Roll pin for mating gas tube to standard gas block or front sight base.

Our Price: $0.79
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(30)
Troy Industries - Low Profile Gas Block .750"

Troy Low Profile Gas Block fits all M4 Carbines and M16A2 - A3 and A4 Rifles Replaces front sight to use 10-Inch or longer MRF handguard Enhanced reliability.

Our Price: $34.99
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(6)
Troy .936 Low Profile Gas Block Troy Industries - Low Profile Gas Block .936"

Troy Low Profile Gas Block fits under most free float rails and handguards.  Inside diameter of .936". Secures to barrel with 2 sets screws located on bottom of gas block.

Our Price: $34.99
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Troy .875 Low Profile Gas Block Troy Industries - Low Profile Gas Block .875"

Troy Low Profile Gas Block fits under most free float rails and handguards.  Inside diameter of .875"

Our Price: $34.99
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(3)
CMMG - Low Profile Gas Block .936" ID - 55DA36F CMMG - Low Profile Gas Block .936" ID

Low profile gas block for .936" barrel.

List Price: $39.95
Our Price: $34.99
Savings: $4.96
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(1)
Red Barn Armory AR15 Gas Tube for AR-15. Stainless Steel. Made in USA RBA - Stainless Steel Gas Tube AR15 - (choose length)

American Made stainless steel gas tube for AR15. Choice of: Pistol, Carbine, Mid, & Rifle.

List Price: $14.95
Our Price: $11.99
Sale Price: $9.99
Savings: $4.96
In Stock
(52)
Yankee Hill Machine (YHM) - Gas Block .936" I.D. Bull Barrel

This gas block replaces your existing front sight and provides a simple, low profile gas block to your bull barrel. It clamps to the barrel using 3 Allen screws. This gas block has a bore diameter of .936 inches for bull barrels. Manufactured from aluminum and finished with a matte black anodize. Made in the U.S.A.

Our Price: $44.99
In Stock
(1)
Fortis Mfg Low Profile Gas Block - Red Barn Armory Fortis Mfg - Low Profile Gas Block .750" I.D. (Black Nitride or Stainless Steel)

Not one to just copy and duplicate, Fortis designs and engineers parts with function and good looks.Their low low profile gas block is sized to fit under most free float handguards. Available in 4140 Steel, or 303 Stainless.

Our Price: $45.99
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(4)
Spikes Tactical Melonited AR15 Gas Tube Spike's Tactical - Melonited (Black) AR15 Gas Tube - (Pistol, Carbine, Mid, or Rifle)

Black melonited gas tube from Spike's Tactical. Available in: Pistol, Carbine, Mid, & Rifle Length.

Our Price: $15.99
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(4)
Yankee Hill Machine Low Profile Gas Block .750" Yankee Hill Machine (YHM) - Low Profile Gas Block .750"

This gas block replaces your existing front sight to provide a simple, low profile design that can be used to mount a rifle length forearm to a carbine length barrel. It is mounted by the use of two set screws and is .950 Inches long. Manufactured from high quality steel and finished with a mil. spec. phosphate coating. Made in the U.S.A.

Our Price: $24.99
(Out of Stock)
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Yankee Hill Machine Low Profile Gas Block .750" (Clamp style) Yankee Hill Machine (YHM) - Low Profile Gas Block .750" (Clamp style)

This gas block, from Yankee Hill Machine, installes in place of a standard front sight base to provide a simple, low profile design that can be used to mount an extended length hand guard or free float tube. The YHM-9384 is a clamp style gas block and does not rely on set screws to stay in place. Manufactured from high quality steel and finished with a mil. spec. phosphate coating. Made in the U.S.A.

Our Price: $32.99
(Out of Stock)
(12)
Red Barn Armory Low-Profile .750" Gas Block (set screw) RBA AR15 Low-Profile .750" Gas Block

Low profile gas block for your AR rifle. Dual set screw design fit barrels with .750" OD. Fits under most free float handguards.

Our Price: $24.99
Sale Price: $17.99
Savings: $7.00
(Out of Stock)
(27)
   
 

The Troy low profile gas block, available in .750”, .875”, & .936", fits under most hand guards and free-float rails. For gas tubes, the WMD Nitromet Gas Tube comes in carbine, mid and rifle lengths and are ultra-durable.