Ar15 M4 Flat Top Compact 1/2 Inch Riser

Find Ar15 M4 Flat Top Compact 1 2 Inch Riser @ Amazon.com

Ar15 M4 Flat Top Compact 1 2 Inch Riser

One piece body design
Attaches to flat top Picatinny rails to raise line of sight by 1/2″
Locks with resolute determination in place with two big thumb screws
Installs in seconds
Multiple ring slots (8) to adjust for proper sight position
Made of heavy obligation quality aluminum alloy 6061
Anodized matte black finish
Takes frequent PICATINNY OR Weaver rings
Mount overall length: 3.5″(85mm)
Weight: 3.4OZ

Amazon Sales Rank: #5110 in Sports & Outdoors
Brand: Tms

Locks with resolute determination in place with two screws
Multiple ring slots (8) to adjust for proper sight position

1 of 1 people found the following review helpful.
Good buy for price
By Fonz
Perfect height and secure mount. I needed about 5 minutes with a dremel tool to get this NASA level perfectly flat but I’ll take those five minutes any day over paying 40 dollars more for similar quality items from other manufacturers.

0 of 0 people found the following review helpful.
Excellent for Bushnell TRS-25
By J. Davis
I believe in spending money where it counts, but in the case of a red-dot riser for your M4 you can’t go wrong with this one.

The knobs can be hand tightened, but they also have a hole drilled into them so that you can turn them tighter with an allen wrench or small screwdriver.

The low model is 1/2″ high, and gives you an absolute co-witness with the Bushnell TRS 25 if you are using Troy Micro sights or running an elevated rail such as the VLTOR CASV with normal iron sights.

If you are looking for a riser to use with a standard rail and standard iron sights, you want a Mid height for absolute and a High for 1/3 cowitness.

Presumably this would also apply to the Aimpoint Micro, Vortex Sparc, and other mini red-dots.

I can’t testify as to how level it is, but that doesn’t matter with a red dot sight. Once you have it zeroed you aren’t going to be adjusting the windage or elevation ever. If you are going to mount a scope on this, you may want to spend more money on one of the name brands to be sure you get a mount that is perfectly level.

0 of 0 people found the following review helpful.
Good and sturdy piece.
By R. Zamudio
I needed a 1/2 inch riser to support a red-dot/BUIS cowitness setup, but didn’t want one that takes up the entire rail due to needing space for the folding iron sights. This is one of the only units on Amazon that matched what I needed. The riser seems well made and needed no modification to fit perfectly on my weapon, and for the red dot scope to fit perfectly on it. I fired over 100 rounds of 5.56 with it mounted and was making consistent 2-3″ groups the whole time, which tells me the mount did not loosen or migrate because of recoil. Like any weapon accessory that uses screws, blue loc-tite is recommended on the installation.

My only gripe about this riser is the manufacturers choice of knobs. At first it seems the stud and knob threading is different or defective by the way the knob wobbles about its axis while it is being tightened, but once it is tight, everything appears to fit correctly. Also, they used knurled knobs that can only be hand-tightned whereas most other manufacturers of rail-mounted accessories used a knurled knob with a slot that either a screwdriver or a coin can fit into. Sometimes it is that extra 1/4 turn that can make the difference between tight and loose. I guess you could use some slip-joint pliers or vise-grips to tool-tighten the riser, but that is not only inconvenient in the field, it will also tear up the knobs or lead to over-tightening/stripping.

Overall, this is a great add-on that deserves 4 stars because of the quality and value, but falls shy of making 5 because it is not perfect.

See all 21 customer reviews…