[WTS/WTT] Brand new HK MR556 A1 Complete Upper. Can sell parts individually; Used MR556 A4 mlok slim rail
Timestamp: https://imgur.com/a/yq5UuUU
New A1 upper, never shot with.
Price for individual parts:
⁃ Complete Barrel assembly (barrel, barrel nut, gas block, piston and rod, FH): $575 ⁃ BCG: $450 ⁃ Upper (includes port door, forward assist, piston guide): $345 ⁃ A1 MLOK rail + charging handle: $125 ⁃ Buying the whole upper: $1250 OBO (I will also throw in an HK heavy buffer and spring for free).
Also have a used MR556 A4 slim MLOK rail: $175. This rail had seen about 200 rounds. It has the cutout for adjustable gas block.
All the prices above include shipping and full insurance. I can take PayPal Friends & Family or Venmo. Dibs rule applies.
Open to trade with Eotech, Aimpoint or other optics. Please feel free to PM me and discuss. Thanks!
Posted Jul 6, 2025, 8:52 PM UTC