SKU#51000385

$2,299.00
- Complete MR556 A4 Upper Receiver/Barrel Assembly— HK 11 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
- Adjustable Gas Block
- Ships in HK Soft case.
- NOTE: The MR556 A4 Upper Receiver Kit is not classified as a firearm and can be purchased without a Federal Firearms License ( FFL).
NFA DISCLAIMER
This Item is regulated by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer's responsibility to make sure they comply with all NFA rules and applicable laws. If you need further information on NFA regulation, please contact an attorney.
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