PRI Flip Up Front Sight Gas Block - Crossbolt - .750"

Manufactured by Precision Reflex, Inc.
SKU: 05-0025
MPN: 05-0025
Manufactured by Precision Reflex, Inc.
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NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business days or less. FFL orders take approximately 10 business days or less if you can provide us an actively receiving FFL location. Due to high demand, there is a limit of 5 FFL items in a 30 day period.



An iconic part of the revered Mk12 SPR. The PRI Flip Up Front Sight with .750 Crossbolt is a unique combination gas-compatible flip-up front sight that fits standard .750 diameter AR15 barrels. This irregular design eliminates the shadow cast on optics mounted on flat top receivers. With a lightweight hard coat black anodization, these sights also reduce overall reflection and maintain a low profile. The base is cast from 4140 steel, while the sight posts are constructed out of T6 6061 aluminum. The front post uses standard A2 post for height adjustment in ¼ turn increments. Centerline of barrel to line of sight is measured at 2.57”. A provision is made in the rear of the sight base for the gas tube to attach as an integral part of the unit.

  • Low Profile, Reflection-Reduced Design
  • Integral Provision for Gas System
  • Hard Steel Base
  • T6 6061 Anodized Sight Post
  • A2 Post Adjustment
  • Compatible with .750 Diameter Barrel Profile
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BrandPrecision Reflex, Inc.
FinishManganese Phosphate
Fixed FoldingFolding
MaterialSteel - 4140 Chrome Moly
Size.750 in
TypeFront Sight Block

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

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