timmy wrote:XL: being from Ruger, these look good -- I didn't know that Ruger had an offering and agree that, by reputation, these should be good rifles. 2 questions for you (well, actually 3):
1. You say: "Micrometer precision is not necessary for the AR-15 to run well." I can understand that, but wouldn't proper alignment of the bolt, so that the locking lugs all engage equally, be necessary for best accuracy?
2. and 3. I haven't shot one of these, except for once over 35 years ago. On that Picatinny rail, one could not mount a scope low, because the front sight would be in the way. Also, there wouldn't be a way to get any kind of cheek weld that way. Using a scope, is there some sort of mount that is up high, like the height of the old carrying handle, so one can get the right cheek weld?
Yours still has the front sight, but your scope is low, and Baljit's doesn't have a front sight, but I haven't figured out the cheek weld part. Can you help?
Here is the barrel extension
Here is the bolt that locks in it (image from Rainier Arms
As long as it rotates and locks in there, you're good.
While there is a certain amount of precision required, it's really not anything special for anyone with a CNC machine.
The CAD files are available for free in the net.
CNC machines are so cheap now that even small shops with just a few people have them but you need a machine.
However, you can't just take a welding torch, a shovel and a bending break to make a receiver like you can for an AK
Generally while sighting down the rifle, you keep your head erect.
With the red dot, you put the dot at the tip of the front sight. With both eyes open, you see the red dot out there but not the front sight. I mean you can see it but you don't really notice it if you are concentrating on the dot.
You mount it "co-witness", so you can use both front and back sights if the red dot fails.
With a magnified scope, you absolutely do not see the front sight. It totally disappears.
“Never give in, never give in, never; never; never; never – in nothing, great or small, large or petty – never give in except to convictions of honor and good sense” — Winston Churchill, Oct 29, 1941