GEAR & APPAREL
Heckler and Koch (HK USA)
Heckler and Koch (HK USA) MR556A4 URK
MR556A4 UPPER KIT 5.56MM 11"
$2,179.00
Out of Stock
SHIPS DIRECT TO YOU · No FFL transfer required · Free shipping over $200
— Overview
MR556A4 UPPER KIT 5.56MM 11". Features: Includes Bolt and Buffer, M-Lok Handguard.
— Specifications
Built to Spec
Manufacturer
Heckler and Koch (HK USA)
Family
MR556 Series
Model
MR556A4 URK
Item Number
HK51000385
UPC
642230270220
Caliber
223 Rem | 5.56 NATO
Barrel Length
11"
Rate of Twist
1-in-7"
Finish
Matte Black
Finish Type
Black