New BCA left side charging Receiver/BCG combo! This billet upper fits any Mil-spec lower receiver. This combo includes a BCA side charger BCG, a left-side charging (Gen2) handle (patent protected) and the BCA side charging upper. This combo is perfect for a bolt action/Semi auto build or perfect for an ergonomic and unique work horse build.
- M4 Flat Top Upper Receiver
- Left Handed Side Charging
- Made from 7075 Aircraft Aluminum
- Includes BCA BCG, Side Charging Bolt Handle
- 5.56 NATO / .223 WYLDE Caliber
- Anodized Black
|Material||4150 Chrome Moly Vanadium|
|Caliber||.223 / 5.56 NATO / .300 Blackout|
|Charging Style||Left Side Charging|
What magazine/ammo does BCA recommend for each caliber?
These are brands that BCA uses in the facility to test fire our products. However, there are several brands that will also function properly. Caliber Magazine Ammo Grain Weight Ammo Brands BCA Status AR15 - 223/5...
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