Desert Tactical Arms

[m796rider]

Not sure how you determined the MDR in the photo has a .308-sized magazine. I think you're mistaken, primarily because the calibers you mention are rather incompatible with the 10.5-inch barrel option.

Uh, not exactly. Try 16.5" barrel, 26" overall length.

"*Portability – The MDR has unrivaled portability because it is lightweight, com- pact, ergonomic, and balanced with an overall length of 26″ (or 20″ with 10.5″ barrel)..."

http://www.thefirearmblog.com/blog/2014/...mic-rifle/

Mag size is easy: just count the number of picatinney rail positions. It's obvious the mag is much bigger than one for 5.56.

ETA: Longer barrels are obviously pretty easy... Here are 16.5", 18.5" and 20" options. I would find a 20" 6.5 Creedmoor config very useful...



The 10.5" barrel and 30 round mag mentioned are almost certainly tied to a conversion kit of some kind that will allow 5.56-sized mags. I am also having trouble picturing a 10.5' barreled .308 bullpup... Ouch.

I'm betting the front sight contains both windage and elevation adjustments and is tied to the barrel, so swapping barrels preserves your zero if using the provided fixed rear iron sight. Photos of the front sight mechanism also seem to show the sight cantilevers as it folds so it tucks in neatly and is not just flat over the flash suppressor.