Description
Andro Corp Industries 10.3″ Crane Spec upper in 5.56 NATO — the Orlando-made MK18 clone, set up for suppressed shooting. ACI-branded 4150 chrome-moly barrel with the .070 Crane Spec gas port (smaller than a standard carbine port, so it stays soft and clean with a can), 1:7 twist, M4 feed ramps, 1/2×28 threads. Low-profile .750 gas block under a 9″ free-float M-LOK handguard with a full-length top rail, and a Plan B flash hider. Dry-film-lubed 7075-T6 forged upper with T-marks, forward assist and ejection port cover.
What’s included
- Complete 10.3″ 5.56 NATO upper receiver group
- 9″ M-LOK free-float handguard
- Plan B flash hider (1/2×28)
- Not included: bolt carrier group and charging handle
Specs
- Caliber: 5.56×45 NATO · Barrel: 10.3″ 4150 CMV, 1:7 twist, Melonite/QPQ, M4 feed ramps
- Gas: carbine length, .070 port, .750 low-profile gas block
- Upper: 7075-T6 forged, T-marked, forward assist, dust cover
- Handguard: 9″ M-LOK, free-float
- Muzzle: 1/2×28, Plan B flash hider
Condition
Pre-owned, one local owner, very clean — see the studio photos.
Good to know
An upper receiver is not a firearm, so no FFL transfer is needed and it ships straight to you. A 10.3″ barrel may only be installed on an AR pistol lower or a lawfully registered short-barreled rifle — see our NFA update for the current rules in Florida.
Pre-Owned Vault
Consignment piece from a local Lake Nona owner, sold through Nona Guns. Orlando-area buyers can pick up by appointment. Sold as described — see our pre-owned terms. Florida residents: sales tax collected.
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