The DR-200 is the post-ban, t-hole version of the K2, which is the standard issue combat rifle for the ROK Army and Marine Corps. It's built in the same plant that license produced M16A1's for decades.
The ROKs decided they wanted a new rifle, that had better reliabiltiy than the M16A1 and a few other nifty features. It takes standard M16 mags, the M16 bipod, and bayonet, and the flash suppressor is 22mm for grenade launching. the FS's slots are offset at an angle to compensate for recoil. The barrel is the same wieght of the M16A1, though shorter at 18". It is 1/7 twist on the K2 and 1/12 on the post-ban DR-200. The gas regulator is in the same place as the FAL's. It allows three shooting positons and an off. It is chrome plated on the inside for easier maintenance. The front sight is fixed and is a blade with a protective circle around it, kinda like a G-3's front sight only WAY tougher. The handgaurds are two piece plastic with heatshileds. The upper receiver is forged alloy. There is a slot in the right side, where the cocking handle goes. The cocking handle is connected directly to the bolt and also functions as the fwd assist. The rear sight has an A1 windage drum, and a zero adjustment for elevation, and range adjustments as well out to 600 meters. The gas system is straight AK. The bolt and carrier is like an M16, only shorter. There is a return spring the same as an AK. At the end of the return spring is a latch that holds the upper to the lower at the rear. At the front there is a pivot pin, like the M16. The lower is forged alloy. It takes M16 mags and has a bolt catch (last round hold open) that is more reinforced than the M16. The ejector is similar to the AK, but replaceable. At the rear of the lower is a spring loaded buffer. The pistol grip has a cleaning kit in it, and the folding stock uses the FAL/Galil locking system. It folds to the right side. When it's locked open, you can't even tell it's a folder, it's that tight and strong.
The DR-200 is simply the post-ban version of the K2. It has no bayo lug, a muzzle device, a T-hole and that's about it. The T-hole does change the geometry of the lower, so the ACE stock is really the only decent stock for it. It's a nice stock though an works out quite well. The selector on the DR is backwards in that it rotates up instead of down like on an AR-15. The T-hole was in the way, so they changed it from the K2, which is the same as an M16/AR-15. To change it back, all you need to do is make a channel in the slector shaft.
The rifle takes some AR parts. The trigger group is interchangable. There are a couple other odds and ends that interchange as well. Other parts can be modified from the AR to fit. Other parts, like an ejector, can be fairly easy to make, and other parts are just not going to be available unless you dig. If you dig, you'll find them. Some people make some of the parts on CNC machines.
As for accuracy, it's as good as an AR-15. As for reliability, it's as good as an AK. As for cost, it's in between. As for weight, it's about the same as an A1, not as heavy as an A2, and with the folder, it makes a great gun to keep in a duffle bag. They shoot very nice.
Frankly if you sat down and thought up the perfect combo of guns that would go into one, you'd pretty much have the Daewoo.
I have a K2 and a DR-200 and they're great guns. I don't worry about the parts issue.
Ross