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HK MR556 5.56 16.5 MLOK UPPER RECEIVER KIT
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
$1,849.99
3 in stock
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Shipping Notice:
When purchasing certain items such as firearms online, we are required by federal law to ship them to a licensed federal firearms dealer. The dealer will handle the transfer of these items to you. Learn more about this process here.
Information On This Product
| upc | |
|---|---|
| Manufacturer | Heckler & Koch / H&K |
| Manufacturer Part Number | 81000584 |
| Barrel Finish | Matte Black |
| Barrel Length | 16.5 |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Length | 44.1500 |
| Rate of Twist | 1:7" |
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