Here is a photo of my near-complete DR200 conversion. The Daewoo DR200 is the ban-era import clone of the Daewoo K2 as used by the South Korean military. It fires the 5.56x45mm NATO cartridge and feeds from STANAG/AR-15 magazines. The weapon itself is very much like an AR-15 in that it has two receiver halves, upper and lower. The lower has the exact same ergonomics as the AR-15 (safety, mag release, bolt release), and the barrel is actually very similar dimensionally to an AR-15's. Said barrel is also 18" in length, unlike the AR-15's typical 16" or 20". Anyway, it uses standard AR muzzle devices so long as an appropriately-sized jam nut is used in conjunction with them. The sight set-up is also very much "borrowed" from the AR-series, save for the fully encircled front sight post which seems to borrow more from the HK series of weapons. I find this iron sight set-up superior to the AR's as you are not aligning the post in the center so much as aligning two circles: it is basically impossible to get an incorrect sight picture.
The furniture on the original, military-used K2s is heavily FN FAL-influenced, but on the DR200 sporters, only the handguards are retained from the original models. Since they are imported with a thumbhole stock (DR200s), I any pistol grip or buttstock is basically going to be a US-made device. That said, the pistol grip shown here is a near-exact replica of the original Daewoo grip, which is very FAL influenced, as well. Ditto for the adjustable gas block.
The internals are where things differ greatly from the AR series, however. The bolt-carrier is basically a slightly reprofiled and chopped AR bolt-carrier, and the bolt is a modified AR bolt. There is a long-stroke piston that sits on top of this bolt-carrier, and rides in the gas tube: the set-up is near-identical to the AK series of rifle. Also borrowed from the AK series is the recoil spring situated inside the piston housing that also doubles as the rear take-down button of the weapon. The Daewoo also features a charging handle on the right-hand side of the weapon.
As for this conversion, I have the following parts, butt to muzzle:
* MagPul CTR
* Daewoo USGI-style sling
* Comm.-spec buffer tube
* Stormwerkz buffer tube adapter
* ACE LTD pistol grip
* Daewoo Rifle Parts 90* safety
* EOTech 517
* MagPul PMag, Gen2
* Daewoo Rifle Parts US-made piston
* Stormwerkz quad-rail with all but 12 o'clock rail segments removed
* VLTOR SMQ-OCG
* SureFire 6PX Pro.
* Daewoo Rifle Parts US-made K2 flash hider
Now, the reason this conversion is not yet complete is because I still have two parts yet to add. Those parts would be a fixed M16A2 buttstock and a foregrip. I believe I have found a way to adapt a MagPul MOE vertical grip to this quad rail housing, so I will be pursuing that idea. Because of the light and piston assembly, the rifle is somewhat front-heavy, meaning it's a tiny bit slower to bring around to target than some rifles of the same size. The foregrip should give me more leverage for target acquisition in CQB-type scenarios, and since I plan on running it just forward of the magazine well, there should still be ample, unmolested handguard space for more accurate sling-supported fire for shots exceeding immediate vicinity.
Any and all questions welcomed!