The United States Marine Corps Designated Marksman Rifle (DMR, NSN 1005-01-458-6235; more formally the United States Rifle, 7.62 mm, M14, DMR) is a semi-automatic, gas-operated rifle chambered for the 7.62x51mm NATO cartridge. It is a modified version of the M14 rifle built and utilized by the United States Marine Corps.
M14 is an M1 with a detachable magazine and sometimes a synthetic stock, and a full-auto sear. The action is the same otherwise.
I appreciate the effort, but please, be sure to check and use established tags that are listed in the list of weapons. We can't afford to distinguish between all the model types, so we mostly use the platforms / model lines to tag them. There are exceptions, though (mp5k, m4_carbine, M21), so check the list anyway.
"And last but not least the fire extinguisher capale of firing a single stram of chemical for about five minutes can be loaded with the standard load or several other chemical mixes for all kinds of fun. it may also explode if handled incorrectly any questions?"
After copies of Puella Magica Madoka's tenth episode fell into Gensokyo and made their way to the SDM, Sakuya resolved that she was not to be outdone in terms of Time-Stopping Dakka Antics.
So... This is Flandre's living room and basement is shooting range. I'm not surprized, that she lived there for hald-thousand years on her own will. I'd too...