Cross Machine Tool J.A.G. Gas Block - .750" - Set Screw Style

Manufactured by Cross Machine Tool
Manufactured by Cross Machine Tool
2 Reviews

Out of Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.



The Just A Gas Block line of gas blocks provide a high quality, affordable component that is beautifully machined and finished. The J.A.G. is a low-profile AR-15/10 gas block compatible with most handguards on the market. J.A.G. gas blocks feature a completed through hole instead of a blind gas tube hole to ensure future trouble free replacement of worn gas tubes.

  • Gas seat diameter: .750"
  • Includes (2) set screws, (1) gas tube roll pin
  • Stress proof steel 
  • Black Nitride finished
  • Weight: 1.3 oz
  • Made in the U.S.A.

Cross Machine Tool Co., utilizing the latest machining technologies, offers high quality products that you’ll be excited to own.
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BrandCross Machine Tool
FinishSalt Bath Nitride
Size.750 in
Weight1.3 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

2 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Hard to beat for $22.00

by -

Fit and looks are great with this gas block. The inside is polished smooth, gas tube hole is a snug fit and if your barrel has been dimpled the set screws line right up spot on.

Worth the price

by -

Fit and function are good. Loses one star because the finish on the gas block isn't that great. Has a few small spots of rust, but it's covered by the rail so I don't care.