The Andro Corp Industries ACI-15 U556103ML is a complete AR-15 upper receiver with a 10.3-inch 5.56 NATO barrel and a slim M-LOK handguard. It is built on a 7075-T6 aluminum upper and includes a full-auto-rated M16 nitride bolt carrier group.
- Manufacturer Part # : U556103ML
- Type : Complete Upper Receiver
- Platform : AR-15
- Caliber : 5.56 NATO
- Barrel Length : 10.3"
- Gas System : Direct Impingement
- Handguard : M-LOK
- Muzzle Device : A2 Flash Hider, 1/2x28
- Barrel Material : 4150 Chrome Moly Vanadium Steel, QPQ Nitride
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