I'm an optician and I've been dealing with people with this sort of problem for 40 years. The solution exists. You just need your current eye glass prescription. To make this as simple as possible; I measure the distance from your eye to the front site and make your glasses so the front site is...
I shoot full auto (a 5.56 and a 9mm) and almost always shoot 500+ rnds/gun at the range. So I clean after every trip. What a pain! I think it would be a profitable business to offer traveling cleaning services. I'd gladly pay a person to clean my guns!
Alliance Sabre 5.56 Upper Receiver for MAC-10 - Full Auto - Uses standard AR-15 Mags
Runs perfectly - In pristine condition
Upper ONLY - Does not include attachments - Does not include lower
Alliance Sabre 5.56 Upper Receiver for MAC-10 - uses standard AR-15 Mags
Runs perfectly - In pristine condition
Upper ONLY - Does not include attachments - Does not include lower
Ingram MAC-10 with 5.56 upper and 9mm upper.
Fire Control Group
CNC Trigger Disconnect Set
Telescoping Stock
Full auto, transferable, requires class lll FFL
Runs like a tack driver
Alliance Sabre 5.56 Upper Receiver uses standard AR-15 Mags
Vortex Razor AMG UH-1 Holographic Red Dot...