Q&A for Precision Reflex PRI Flip Up Front Sights w/ .625 Crossbolt

Precision Reflex PRI Flip Up Front Sights w/ .625 Crossbolt

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AJ, member, from MO, United States, asked on January 10, 2021

What is the length the .625 sight takes along the barrel?

Answered by MrBang, member, from OR, United States, on January 26, 2022

Measuring from the handguard cap, the base which clamps around the barrel is about 1 13/16 inches (about 46mm). The sight itself curves up and forward from the base and takes up about 2 1/4 inches overall (about 57mm).

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Jeff, member, from CA, United States, asked on July 30, 2020

Does this front sight interfere with the Magpul MOE SL Handguard?

Answered by MrBang, member, from OR, United States, on January 26, 2022

While Magpul says that the MOE SL is only usable with an A2 fixed front sight, they must be saying that for liability reasons. I have used the MOE SL handguard successfully with flip-up front sights from PRI, YHM and GG&G. Only the YHM required the end of the handguard to be filed (very slightly) for clearance. All three brands have worked FLAWLESSLY for me with the MOE SL.

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Joe, member, from DE, United States, asked on March 23, 2024

Would this align properly with the aero precision detachable a2 carry handle?

Answered by Jeff, member, from FL, United States, on April 24, 2025

It should. Previous answers say it aligns with mil-spec height rears.

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delersonmarc, guest, from FL, United States, asked on October 21, 2021

Will I be able to use a round handguard cap

Answered by MrBang, member, from OR, United States, on January 26, 2022

Yes, you can use round or triangular handguard caps to match whatever your chosen handguards require.

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Jeff, member, from FL, United States, asked on April 20, 2021

What is a good rear flip to match with this? Says post is 2.575" over bore center, and this matches a carry handle. Do all rear flips match? Thanks.

Expert Answer

Answered by Brandon B, Gear Expert, from IL, United States, on October 08, 2021

Yes any Mil. Spec. rear will work with PRI front sight. 05-0029 for sure or Arms 40L will also.

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James, member, from FL, United States, asked on January 31, 2020

Will this sight reach the same height with standard rear flip up seights on receiver or is it proprietary?

Answered by Brandon, member, from UT, United States, on March 18, 2021

This will be the same height as a standard A2 front sight and should work with a rear flip up sight.

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XWSH, guest, from MT, United States, asked on March 20, 2026

What is the size of this on the rear side? I'm looking to use this with a specific handguard that would cover it up about 1/4".

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Q&A for Precision Reflex PRI Flip Up Front Sights w/ .625 Crossbolt — 7 Questions & 8 Answers

What is the length the .625 sight takes along the barrel?

Does this front sight interfere with the Magpul MOE SL Handguard?

Would this align properly with the aero precision detachable a2 carry handle?

Will I be able to use a round handguard cap

What is a good rear flip to match with this? Says post is 2.575" over bore center, and this matches a carry handle. Do all rear flips match? Thanks.

Will this sight reach the same height with standard rear flip up seights on receiver or is it proprietary?

What is the size of this on the rear side? I'm looking to use this with a specific handguard that would cover it up about 1/4".