Don't let the terrible web site fool you, the guns are excellent: http://smgguns.com/?page_id=321
I have had a parts kit for a Soviet DPM light machine gun (actually a Polish one, but the design is identical) stashed away for many years now, with the hope to eventually have it built into a live gun. When I found out that SMG (maker the the sweet semiauto FG42 replicas) was making a new production run of DP and DPM barrels, receivers, and semiauto trigger conversions I jumped at my chance. I sent my kit to SMG, and they built it into this complete semiauto rifle.
The DP was introduced in 1928 as the standard Soviet light machine gun, and served through World War Two. In 1944, several defects were acknowledged and improved, notably the location of the recoil spring, the grip, and the bipod. This created the DPM, which did see some slight use at the very end of WW2, as well as use by several eastern bloc nations after the war (including in Korea). It would be updated again in 1946 with the RP46 conversion assembly to feed from Maxim belts instead of the distinctive pan magazines (and in fact, SMG is working on a reproduction of the RP46 conversion as well, although it is not yet ready).
Anyway, I took my new semiauto DPM out to the range and got a firsthand understanding of why these guns were so well liked by troops who used them. The design is nothing if not solid, rugged, and dependable. Like other iconic Soviet firearms, the DP/DPM is elegantly simple and bombproof. It is easy and comfortable to shoot, and SMG's new and very clever linear hammer-fired semiauto conversion gives it a better trigger than any other semiauto machine gun conversion I have handled. Most such guns have really heavy and really creepy triggers, but this is about 8lb and very crisp - and that makes a huge difference in its shootability.
In a nutshell, the gun zeroed easily and shot well, it had no malfuctions in my 3 or 4 pans of ammo expended (using Czech surplus steel-case ammo), and was really a joy to shoot. I would not hesitate to recommend them, and SMG is offered everything from individual parts for you to build yourself to kit build services, and turnkey complete guns.
Cool Forgotten Weapons merch! http://shop.bbtv.com/collections/forgotten-weapons