Additional information
| UPC | 642230270213 |
|---|---|
| Manufacturer | Heckler & Koch / H&K |
| Manufacturer Part Number | 51000384 |
| Action | .223 REM/5.56 NATO |
| Additional Feature 1 | Includes Bolt and Buffer |
| Additional Feature 2 | M-LOK Handguard |
| Adjustable Objective | False |
| Barrel Finish | Stainless |
| Barrel Length | 16.5" |
| Barrel Material | STEEL |
| Caliber/Gauge | .223 REM/5.56 NATO |
| canDropship | True |
| Color | Black |
| Dimension | 4.50 X 13.80 X 43.95 |
| Drilled and Tapped | False |
| Finish | Anodized |
| Finish Type | Black |
| Fit | AR-15 |
| Height | 4.5000 |
| Illuminated Reticle | False |
| Length | 43.9500 |
| Model | MR556 A4 Upper Receiver |
| Other Features | FORWARD ASSIST |
| Package Height | 3.5 |
| Package Length | 43.75 |
| Package Width | 13.5 |
| Product Type | Accessory-Uppers |
| Rate of Twist | 1-in-7" |
| Scope Cover Included | False |
| Shipping Weight | 11.3 |
| Subcategory | Complete Upper Receivers |
| Weight | 11.214 |
| Width | 13.8000 |
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