HK MR556 5.56 16.5 MLOK UPPER RECEIVER KIT
$1,744.82
Ratings & Reviews
(based on 0 reviews)
Description
The MR556A1 Upper Receiver Kit includes a complete upper receiver/barrel assembly bolt carrier assembly buffer and buffer spring allowing most high-quality 5.56 mm AR-style rifles to be retrofitted to HK’s pusher rod system. - Complete MR556 Upper Receiver/Barrel Assembly HK 16.5 inch cold-hammer forged barrel upper receiver with forward assist extended convertible charging handle HK Free Floating Rail System handguard - Complete MR556 Bolt Group Assembly - Tungsten Filled HK Proprietary Buffer - HK Proprietary Buffer (Action) Spring
Features
- Includes Bolt and Buffer
- M-Lok Handguard
Specifications
- Flash Hider
- Black
- MR556A1 Upper
- Upper
- 16.5"
- 556NATO
- 223 Remington
- 1:7
- AR-15
- Matte Black
- 223 Rem | 5.56 NATO
- 1-in-7"
- Black
