A1 Sight
Pretty much standard product but delivery was fast and the price was fair. It appears to be modelled after the original with its lettering/numbering, especially since I have used original sights.
Don't install over carpeted floor!
Installation is not easy, and the spring-loaded detent does a great disappearing act, I lost two, even when I was smart and put a sheet under my working area. Once installed, very happy with the sight.
Great with Brownells upper
I used this to put together a Brownells A1 slickside upper receiver and worked great. Roll pin was a bit of a pain to install but this was my first A1 style build. My only complaint is I can't find info on the manufacturing specs to verify zero is per A1 doctrine. Otherwise great product in my experience!
Works, but spring is tight.
Works as it should. Install was difficult because spring was tight and tough to get windage screw over. Was able to install though. Drum pin is very small and can be lost easily. Overall, good product.
Worked Fine
That spring was STIFF but I got everything together okay, just took a bit. Parts look good, sighted right in, no issues.
Worked for me
I picked this up for an A1 clone. I used a Rapidex windage knob and had to pick up a 5/8 pin from the hardware store to use the knob. It was a little bit of a hassle to get the screw through the aperture and out the right side but not that bad. It you are a 100% purist an original GI sight may be better for you.Seems to be working good so far. I'll order another for the XM16E1 build I am starting now.
Install difficult... read more:
As other reviews have said... it's super difficult to screw the sight in... but only the first time. This is BY DESIGN because there should be no backlash or wiggle in a sight, so there is essentially no tolerance. The Aperture should "marry" to the leadscrew the first time you thread it all the way. Put the aperture in a vice (NOT IN THE RECEIVER), lube the screw and the aperture, and then thread the screw 100% into the aperture almost like you were tapping threads... go in a full turn or two and then work it back out a turn or so. This will take about 5 minutes. You'll notice that once the screw has been up into the aperture all the way, that the screw is now just barely tighter than finger-tight to turn (perfect). Use a hollow-ground flat corrected sized screwdriver or you could damage the screw slot. Once you have the screw and aperture fitting almost finger tight, install into your receiver or sight base. I gave it 4 stars because it could be a bit easier to assemble the first time and the finish looks like it could use a bit of WD-40 to remove some very light corrosion.
Good, affordable replacement parts
I got this kit for an old bushmaster A1 up per I have. The rear sight sitting on it was very hard to adjust and I just didn't shoot it much. With how cheap this kit is I decided it was time for an upgrade. The parts are all new but with mine the finish on the screw and the internal threads in the sight seem to have not taken well and rusted. When I initially installed it I had to turn the screw driver extremely carefully and powerful. I removed it, cleaned it up with pb blaster and a brass brush, and the finish came off the screw and out of the rear sight. Cleaned that off with gun scrubber and then I sprayed some white lithium on both pieces and reinstalled and they went in much easier and now I can adjust the sight very easily. I would definitely bit it again but would clean the parts off first. I may have just gotten a lemon but I'm stilk happy with it.
