Reviews & Ratings for Precision Reflex PRI Flip Up Front Sight w/ .750 Crossbolt

Precision Reflex PRI Flip Up Front Sight w/ .750 Crossbolt

$190.00 $172.47 Save $17.53

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Most Helpful Positive Review Superior flip up sight

The first military SPR Mk.12 mod.0 came out with the Precision Reflex flip up front sight. These are superior sights, not cheap stuff. There sights are superior, if they were chosen for Naval Special Forces, they had to be. They are easy to install and there is another version with set screws. As to which one is the best is really entirely up to you, many people swear by the crossbolt because they offer for accuracy without the fuse of having to machine flats on your barrel. I have both and I think I like the crossbolt better.

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Mk12 build

by Hunter Fenley, Verified Owner from KY, United States Written on August 19, 2026

Easy to install worked great on my BCM ss410 barrel 18in

Best Used for:

MK12

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This thing rocks

by Joel, Verified Owner from GA, United States Written on March 24, 2026

Always wanted to try these but usually just ended up with something else. Lives up to the hype. Makes me want a whole mk12

Was it helpful to you? Yes | No

used for a faux dissipator build

by Dan, Verified Owner from FL, United States Written on October 12, 2024

Sturdy, well made and idiot proof.

I used this with a faux Dissipator build and the cross bolts are idiot proof.

Pairs well with a number of rear sights.

Not much else to say here.

Whether you’re using the gas or not the thing is bombproof

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Fit and finish

by Danny, Verified Owner from KY, United States Written on January 3, 2024

Fit was snug on gas journal but not tight. Finish was more than acceptable

0 of 1 found the following review helpful.

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Great sight!!

by Shamming A B, Verified Owner from TX, United States Written on December 29, 2021

Love this front sight gas block!! Cross bolt is rugged and will handle a beating while maintaining zero. Necessity for Mk12 build!! Got it in 4 days!! Flip up push button is strong. Have the adjustable front sight, so I don’t need a tool to adjust. Very handy in the field if expedience is the Priority.

Best Used for:

Mk 12 clone

1 of 1 found the following review helpful.

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Solid barrel mounted front sight option

by Joe Citizen, from CT, United States Written on December 4, 2021

Grabbed this front sight gas block for a recent mk12 inspired build. Mounted it to a stainless BA SPR barrel. Sight itself and folding mechanism seem very sturdy and high quality. I'm generally a fan of taper pinned front sight bases but after installing this I'd be shocked if it was ever a problem outside the most extreme circumstances. OP had one of the best prices around, but the shipping they use is crazy. Product itself is good to go though.

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Great sight

by Fruit co, from FL, United States Written on April 8, 2021

Easy to install and provides an amazing sight picture. The product does not come with a gas tube pin. The finish is also impeccable. Would recommend to all my friends. Inserting Random word because you have to write a minimum of 200 characters

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Great Flip Up Sight

by C.S., Verified Owner from CA, United States Written on February 11, 2021

This is a great flip up iron sight/gas block if you're trying to be clone correct or if you just like flip up iron sights. It'll replace a standard A2 post and it's pretty slick. I have it fit inside of a FSP rail (I have both the KAC MRE and Centurion C4 FSP).

2 of 2 found the following review helpful.

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Heavy duty sight

by Happy shooter, Verified Owner from WV, United States Written on February 5, 2020

Premium iron backup sight. Built military tough so I know it’ll handle anything I can throw at it. Easy install. Sight picture is better than any backup sight I’ve ever used. Installed an a 2013 Colt LE6920. Now I need to shot around for a rear sight of equal quality. Opticsplanet shipped 2 day delivery at their cost. Arrived at my door on third business day. Good transaction.

Pros:

Tough construction, awesome sight picture. Easy instal following included instructions.

Cons:

Finding a rear sight of equal quality

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PRI Flip Up Front Sight/Gas Block, .750", cross bolt

by NK, Verified Owner from TX, United States Written on June 21, 2019

This is a great flip up front/gas block combo. Must have the correct length on gas journal (1.9") for it to clamp correctly. Cross bolt system makes the unit rock solid. Gives your rifle an old school look like a Mk12, Mod O. Must use the correct length free float handguard to work/look right.

Pros:

solid mounting system
best flip up front sight/gas block combo

Cons:

None

Best Used for:

AR-15 with .750" gas journal that is 1.9" long

1 of 1 found the following review helpful.

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Reviews & Ratings for Precision Reflex PRI Flip Up Front Sight w/ .750 Crossbolt — 12 reviews — Page 1