Upper started as a DD M4A1 RIS 3 URG
The following changes have been made:
- RIS 3 rail swapped for RIS 2
- Superlative Arms Adjustable gas block swapped from factory gas block
- Brand new DD muzzle device added, not pinned as you will likely want to add your own muzzle device.
- Brand new bolt
- Brand new DD ambi charging handle
Round Count: 550-600
Bolt and ambi charging handle have been replaced with brand new ones as I replaced this upper with another DD and carried over my used ones. I also have a Tango Down grip I can add to the deal (black).
No trades.
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