What are current owners' and others' opinions on this rifle system?
1. Wild price swings. I've seen them for as low at $1000 to as high as $2,000. What gives?
2. 16" vs. 20" barrel?
3. Are the 5.56 mags interchangable with AR15 mags? What about 7.62x39 and AK mags? Or are they proprietary?
4. Weaver rail or proprietary rail and sight? How easy is it to switch the two?
5. E4 models vs. the 556? What's the difference?
Opinions?
1. Wild price swings. I've seen them for as low at $1000 to as high as $2,000. What gives?
2. 16" vs. 20" barrel?
3. Are the 5.56 mags interchangable with AR15 mags? What about 7.62x39 and AK mags? Or are they proprietary?
4. Weaver rail or proprietary rail and sight? How easy is it to switch the two?
5. E4 models vs. the 556? What's the difference?
Opinions?