Glen from NV from United States, NV Public Profile

I installed this rail on a MAC5. It did not seat level and cannot be adjusted as other mounts due to the nature of the claws that hold the mount to the firearm. I used an inch-lb. driver to install the mount and correctly torqued the screws. After determining that the mount could not be leveled, I began to remove it only to find that one of the screws had galled so badly in the claw that even with the application of heat it could not be removed. That process destroyed a pair of Torx bits. I finally managed to remove the remaining three screws, which allowed me to remove the mount from the firearm. From there, the mount went straight into the round file as it deserved, to be replaced with a quality MI mount. Lesson learned.

Bottom line: If you buy this and it doesn't seat level, good luck removing the mounting screws. Better yet, learn from my mistake and buy a better quality mount.

I installed this rail on a MAC5. The rail did not fit with the rail in alignment; it was visibly canted to the left. I don't blame it on the rail, instead suspecting the MAC5 receiver pressing to be slightly out of spec. However, unlike other claw mounts whose feet can be adjusted by means of mounting screw tension which allows for the rail to be leveled, this rail cannot be thus adjusted. Will probably remove it and replace it with a rail that can be adjusted. 4 stars for being a solid, out-of-the-box mounting system, minus one star for the lack of adjustability.

If you read about this mount in reviews and elsewhere, you'll read that it won't accept the Romeo1 RDS. This is not true although a bit of fitting is required.

Caveat: I'm not a machinist. Never hold a workpiece in your hand when using powered rotating machinery. If you fumble and wind up not being able to count higher than nine without taking off your shoes, I'm not responsible. I warned you! :-)

To install a Romeo1 on this mount, you'll need the following:

2 M4-0.7 X 10MM socket head screws
Machinist's drill bits #22, #23 and #24 - do NOT attempt this with ordinary drill sets
Milling machine, drill press or other method to turn drill bits
A method to turn the screw head diameter to 0.24"
Cold blue
400 grit sandpaper

You'll need to open the Romeo1's mounting screw holes to accept the M4 screws as the OEM mounting screws are smaller. You may find it difficult to clamp this sight in a vise. The only such surfaces are the sides of the sight hood, which I don't recommend as any significant pressure will deform the hood and crack or break the sight window, and the parallel surfaces at the rear of the sight. The sight body material is relatively soft so use caution when clamping and reaming. Use the #24, #23 and #22 machinist's bits in that order to ream the screw holes to a diameter that will accept the M4 screws.

You'll also need to reduce the diameter of the screws' socket heads. The OEM screw heads measure approximately 0.24 by calipers. I turned the dia

While the description doesn't mention it, it's clear to me that this mount is made to fit an A2 carry handle. The instructions included with the mount show an A2 carry handle and as received, it did not fit my A1 style upper receiver. When the mounting screw was inserted, the nose of the mount pitched upwards out of line. The mount could be rocked back and forth. This wasn't a surprise as I have encountered the issue before and am aware that the sight trough of the A1 carry handle has a different contour than the A2. With careful hand fitting I was able to get the mount to sit flat in the carry handle's sight trough. It appears to be a secure and solid mount. I'll be mounting an old-school Trijicon Reflex on it once I modify the mount to lower the sight; this will allow at least a lower 1/3 cowitness.

I recommend this mount for anyone looking to mount a cowitness RDS or reflex sight on an A2. A1 folks, I recommend it also but be aware you'll have to do a little hand fitting. Go slow, use Dykem as you remove material and you can make it fit just fine.

This adapter seats on the step behind the barrel threads. It also does not require clocking and therefore does not require barrel shims. Simply screw it on and torque to 20-30 ft-lbs. It's lighter and less bulky than the Phantom version but still works with a variety of YHM suppressors, including the original Resonator that I own. My Resonator installs and removes easily.

Without having had a chance to get it out to the range for live testing, I can't say more. Based on the above I recommend it, especially for AR pistols and similar platforms where the weight and length of the full size adapter may be more of an issue or firearms that are seldom fired suppressed and you want a smaller adapter.

Unlike the Choate stock that I ordered at the same time as this item, the Choate metal handguard is a good, solid fit. If you're looking for a metal handguard at a reasonable price, this will serve you well.

My GI Inland M1 Carbine (not the current commercial version) would not fit in this stock as received. The fit against the bottom right edge of the receiver was far too shallow, not allowing the receiver to drop all the way into place. The fit in the area of the recoil plate is VERY poor; I won't be surprised to see damage in this area in relatively few rounds. The inlet for the tang is too narrow and far too long from front to rear. The shelf that supports the recoil plate is too high, causing the recoil plate to sit at an upward angle. At the right rear corner of the receiver, the stock material appears bent upwards, leaving a substantial gap between the stock material and the rear of the receiver. Over an hour's work was required to get this stock anywhere near a good fit and the job isn't done yet.

This is a far cry from the similar Choate carbine stock that I purchased just a few years back which was a perfect drop-in for a GI Carbine. I'm sad to see that Choate can't mold a stock for the M1 carbine any more and won't buy another one. I cannot recommend purchasing this stock unless you are prepared to correct the poor inlet molding.

It doesn't seat with the polymer lower body flush with the bottom of the magwell, therefore looking a little out of place, but locks in place solidly, fed every round loaded into it, even old paper hulls (not recommended!) and locked open when empty. Normally, I'd never recommend a Pro Mag, but they got it right with this one.