Free shipping
over $999
Chicago, the collar counties and all 102 counties
Firearms ship to your Illinois FFL dealer
Find your city
Shipping & FFL
Illinois Gun Shop
Guns and gear for Chicago and Illinois
Help & FAQ
Cart
0
Search
Straight to
Ammo
Used guns
Optics
Home
/
Shop
/ Upper Receivers
Description
Specifications
Reviews
Questions
HK MR556A4 Upper Receiver Kit
Condition
New
UPC
642230270213
Loading reviews…
No questions yet —
ask us
.
You might also like
Shop all →
Daniel Defense DD M4A1 FSP RIS II Complete Upper 14.5in Flat Dark Earth
$1786.51
Details
Add to cart
Daniel Defense MK18 Complete Upper 10.3 inches 5.56mm NATO Matte Black
$1775.60
Details
Add to cart
Daniel Defense DDM4 v7 Upper Receiver Group Lightweight Mid-Length
$1430.60
Details
Add to cart
TacFire BU-9MM-10
$350.74
Details
Add to cart
