HI everyone,

 

I finally finished my AR build and took the gun out for a test drive.  Everything worked great, the gun cycled perfectly and I was on paper out to 100 yards very quickly.

 

I did find it difficult to get a good cheek weld.  Is this common?  I have been shooting rifles for 40+ years and this was my first extended shoot with an AR.

 

My build is on a Delton lower with a a PSA enhanced lower build kit, a Matrix Aerospace upper receiver with a 16" stainless barrel. 

 

I am currently using a Primary Arms Micro-dot for my optics.  I have the optic mounted directly to the upper receiver rail (I opted to try it without a riser, my old school mentality of trying to keep the optic as close to the barrel axis as possible without anything between the optic and the barrel).

 

Any input would be appreciated and I will try and post a picture when I get home tonight.

 

Thanks!

 

 

 

 

Can you take a picture of your setup? You likely need to raise the optic up on the riser. You can get an upgraded stock like an str as well

 

Sent from my SM-G900V using Tapatalk

 

 

A lot of companies make risers for their stocks (and for the standard M4 stock).  But you need to keep charging handle clearance in mind.  If you have a short stock or a pinned M4 in short position, there won't be enough room to operate the CH. 

Your scope is too low. Try a riser that puts the centerline of the dot approx 2.6" above the centerline of the bore. Years ago the problem was the scope, mounted on the A1 or A2 carry handle, was too high for a good weld. 

Definitely need a riser. On a side note, whenever I see "cheek weld" I automatically assume "cheek weld Wednesday". Thanks Breach Bang Clear!

In order to keep the recoil impulse directed straight to the rear, the M16 FoW was designed to have a mechanical offset of approx 2.6".

 

This will create a discrepancy between your line of bore and your line of sight that needs to be corrected by using the correct holdovers for your zero inside of 25 yards. Unfortunately, there really is no way around this, however with practice it becomes second nature.

 

As others said, you need a riser to get your optic up high enough to be in your sight line with a natural head position.

 

Look how high your iron sights are, see if those are comfortable.

 

Rightisright has it backwards. You do not need a stock riser or cheek piece.

 

This will create a discrepancy between your line of bore and your line of sight that needs to be corrected by using the correct holdovers for your zero inside of 25 yards. Unfortunately, there really is no way around this, however with practice it becomes second nature.

 

 

This isn't unfortunate at all, it is the exact opposite as it also gives us the wonderful "dual zero distances" feature. 

In order to keep the recoil impulse directed straight to the rear, the M16 FoW was designed to have a mechanical offset of approx 2.6".

 

This will create a discrepancy between your line of bore and your line of sight that needs to be corrected by using the correct holdovers for your zero inside of 25 yards. Unfortunately, there really is no way around this, however with practice it becomes second nature.

 

As others said, you need a riser to get your optic up high enough to be in your sight line with a natural head position.

 

Look how high your iron sights are, see if those are comfortable.

 

Rightisright has it backwards. You do not need a stock riser or cheek piece.

True dat.  I missed the part where he said he didn't have a riser. 

Can you take a picture of your setup? You likely need to raise the optic up on the riser. You can get an upgraded stock like an str as well

 

Sent from my SM-G900V using Tapatalk

I will try and take a picture tomorrow, but I am thinking I will just add the riser and see how it works.

Definitely need a riser. On a side note, whenever I see "cheek weld" I automatically assume "cheek weld Wednesday". Thanks Breach Bang Clear!

Thanks A-Tech-I will try the riser and see how it goes. 

In order to keep the recoil impulse directed straight to the rear, the M16 FoW was designed to have a mechanical offset of approx 2.6".

 

This will create a discrepancy between your line of bore and your line of sight that needs to be corrected by using the correct holdovers for your zero inside of 25 yards. Unfortunately, there really is no way around this, however with practice it becomes second nature.

 

As others said, you need a riser to get your optic up high enough to be in your sight line with a natural head position.

 

Look how high your iron sights are, see if those are comfortable.

 

Rightisright has it backwards. You do not need a stock riser or cheek piece.

Thanks HE- I will get the riser and see how it works, so much for my logical assumptions!