Main question:
I am looking at trading a AWB compliant AR for a PTR-91A1. I was looking at the sights and noticed that the elevation (front sight post) is not adjustable and that the distance is only adjustable to 400 meters. Why is this so? I know .308 (7.62 NATO) is effective past 400 meters.
Here are the particulars of my situation. I'm trying to decide which way to trade.
I recently purchased a Rock River Tactical Entry and don't need two carbines. So, I figured I would trade off my second carbine which is the Bushmaster pictured here:
It has these features (keep in mind this is a ban rifle with muzzle brake and no bayo lug)
I'm not trading the Aimpoint or the foregrip.
Base Rifle Bushmaster XM15-E2S A3 16 in. Carbine
Front Sight GG&G Tactical Modular Flip Up Front
Rear Sight ARMS #40
Rail System ARMS SIR45-M
Pistol Grip Hogue AR15/M16 Rubber Grip
Foregrip Knights Armament
Stock Sling Adapter GG&G Single point fixed plate
HERE ARE MY TWO INTERESTS:
This Bushmaster 20" A3 w/detachable carry handle:
I'm interested in setting this up as an AR15A4 with KAC M5 RAS
Or this:
I'm interested in this since I do not currently have a .308 in my collection.
Both trade possibilities are brand new. I'm leaning toward the PTR-91 since it has a higher value on average. Does it sound like a good deal to you guys?