The base is solid 4140 cast steel with provision for the gas tube an integral part of the unit. Front post is constructed of T6 6061 hard coated black anodized aluminum. Front post uses a thumb wheel to adjustment front sight elevation. Sight weights 4.9 ounces. The center line of barrel to line of sight is 2.57in the cross bolts are #10-32 x 3/4in socket head cap screws. Specifications for Precision Reflex PRI G1 Flip Up Front Sight w/ .750 Crossbolt: Manufacturer: Precision Reflex Color: Black Sight Mounting Orientation: Top Mounted Sight Position: Front Gun Model: M4, AR-15 Gun Make: AR Platform Front Sight Color: Black Rear Sight Color: Front Sight Only Deployable: Yes Fabric/Material: T6 6061 Aluminum/ Cast Steel Attachment Type: Cross Bolts Front Blade Height: 2.575 in Gun Type: Rifle Included Accessories: Standard Weather Resistance: Yes Package Contents: Precision Reflex PRI G1 Flip Up Front Sight w/ .750 Crossbolt
3 reviews for Precision Reflex PRI G1 Flip Up Front Sight w/ .750 Crossbolt
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TeeSquared –
High quality & very solid build. It also looks awesome & would be a big upgrade in style to most AR's. It has a one of a kind look compared to any other front sights(gas block or not) It's easy to adjustment the front sight post while also holding zero without issue. Theoretically it can even easily be used as just a barrel mounted sight to if your handgaurd covers your gas block. Quick & easy to install. It is somewhat big so IMO it looks much better if the rear sight is a bigger/taller one to match it better. I paired mine with the Magpul Mbus 3 rear sight which happens to have a higher profile than most sights.
Bdill –
PRI makes such good stuff. This gas block doubling as a front sight paired with the PRI handguard and top rail is hands down the best set up ever. I mean just look at how hard the mk12 is… This has solid clicks into place up and down and has no wiggle when raised. I could not be happier with this. If I had exposed gas blocks on every gun I would have one of these for each one.
RT –
Build quality is very nice. It's black. Looks upper part was CNC machined steel. Lower was cast steel. Instructions, barrel gap shim spacer, and gas tube roll pin included.