CMMG manufactures high quality parts and accessories for the AR-15 platform. This particular item is a replacement front sight assembly with gas block assembly. The front sight tower is designed to fit barrels what are .750" diameter with a gas journal approximately 2" long. This assembly requires pinning onto your barrel and the pins are sold separately. This unit should be installed by a gunsmith, or a competent AR-15 specialist only.
Specifications and Features:
CMMG Inc Replacement Part 55DA338
Front sight/gas block assembly
"F" Marked
.750" Barrel diameter
Sling loop
Bayonet lug
Phosphate
Black
Fits:
AR-15 barrels that are .750" diameter
Specifications and Features:
CMMG Inc Replacement Part 55DA338
Front sight/gas block assembly
"F" Marked
.750" Barrel diameter
Sling loop
Bayonet lug
Phosphate
Black
Fits:
AR-15 barrels that are .750" diameter
Out spec larger then .750
Its a big let down that cmmg has produced such a pathetic part, and even more that CTD is saling it Pros: Good materials Cons: Out of spec, no pre drills
December 20, 2018
What junk
Can't believe how rough the casting is,very poor quality,mine came with the finish half on and half missing,the holes aren't even drilled,the pin holding the sling swivel looks like a six year old took a hammer after it,always got great stuff from ctd before,surprised they would sell this.
July 8, 2018
Garbage
Doesn't even have holes drilled to mount.
March 21, 2018
Buy one that is drilled
You can not pin this to the barrel without ruining the sling swivel. Who makes this kind of oversight in engineering. Don't waste your money unless you have a lot of time, patience, and expensive equipment.
January 12, 2018
Didn't realise it wasn't
Didn't realise it wasn't pre drilled. Marked the holes compared to my original front sight and it didn't line up. Worthless now I guess.
March 21, 2016
Well made, BUT... require
Well made, BUT... requires precise drilling to secure it to the barrel.
October 17, 2014
Was concerned I would not
Was concerned I would not be able to install the sight. Great fit for my new build. Good quality!
July 9, 2014
Well made product, howeve
Well made product, however did not work for my AR15.
April 4, 2014