Details
Electra SBA3 Brace 10.5-inch 1:10 9mm AR-9 Freefloat Tubular M-LOK Pistol Full Build Kit
The Electra is a 9mm AR-9 Full Build Kit built around a compact 10.5-inch direct blowback platform. The kit centers on a 10.5-inch medium profile 4150 CrMoV steel barrel with a nitride finish, 1:10 right-hand twist rate, and 1/2x36 thread pitch, paired with a 9mm flash can at 1/2x36 and a black 1/2-inch crush washer. The Vertex Enhanced Pistol Caliber AR-15 billet upper receiver in black is paired with a 10-inch tubular freefloat M-LOK handguard with a 1.77-inch internal diameter and suppressor-ready clearance. A complete 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor compatible with Glock and Colt pattern magazines, and a Mil-Spec AR-15 M4 charging handle complete the upper side. The lower hardware includes a complete Mil-Spec AR-15 lower parts kit, a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an AR-15 9mm carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black is included. Lower receiver not included.
Key Features
- 10.5-inch medium profile 4150 CrMoV steel barrel, nitride finish, 1:10 right-hand twist, 1/2x36 thread pitch, 9mm
- Direct blowback platform
- 9mm flash can, 1/2x36, black 1/2-inch crush washer included
- Vertex Enhanced Pistol Caliber AR-15 billet upper receiver, black
- 10-inch tubular freefloat M-LOK handguard, 1.77-inch internal diameter, suppressor-ready clearance
- Complete 9mm nitride bolt carrier group, 8620 alloy steel, external extractor, Glock and Colt pattern magazine compatible
- Mil-Spec AR-15 M4 charging handle
- Complete Mil-Spec AR-15 lower parts kit
- Mil-Spec heavy-duty 6-position aluminum carbine buffer tube
- AR-15 9mm carbine buffer
- Standard AR-15 carbine recoil spring, made in USA
- Mil-Spec AR-15 M16 receiver end plate
- AR-15 carbine castle nut
- SB Tactical SBA3 adjustable pistol stabilizing brace, black
Perfect For
- AR-9 pistol builders sourcing a complete 9mm blowback full build kit with a Vertex Enhanced Pistol Caliber billet upper receiver, 10.5-inch nitride 4150 CrMoV barrel, 9mm flash can, 10-inch tubular freefloat M-LOK handguard with suppressor-ready clearance, and SBA3 adjustable brace on a Mil-Spec carbine buffer tube already included, pairing it with their own lower receiver
- Shooters building a compact 10.5-inch 9mm direct blowback AR-9 pistol platform who want the AR-9 BCG, charging handle, complete lower parts kit, and SBA3 adjustable brace covered in one kit with a Vertex Enhanced Pistol Caliber billet upper receiver and suppressor-ready tubular freefloat M-LOK handguard
- AR-9 PCC pistol builders who want a complete blowback full build kit with a Glock and Colt pattern magazine compatible BCG, a 10-inch tubular freefloat M-LOK handguard with suppressor-ready clearance, and an SBA3 adjustable brace without sourcing components separately
Barrel and Muzzle Device
The 10.5-inch medium profile barrel is chambered in 9mm and constructed from 4150 CrMoV steel with a nitride finish. The twist rate is 1:10 right-hand and the thread pitch is 1/2x36, which matches the included 9mm flash can. A black 1/2-inch crush washer is included. The direct blowback platform design addresses the 9mm cartridge in an AR-9 pistol caliber build without a gas system.
Upper Receiver and Handguard
The Vertex Enhanced Pistol Caliber AR-15 billet upper receiver carries a black finish and is designed around the AR-9 pistol caliber platform. The 10-inch tubular freefloat M-LOK handguard features a 1.77-inch internal diameter with suppressor-ready clearance and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-9 pistol platform.
Bolt Carrier Group and Charging Handle
The complete 9mm nitride bolt carrier group is 8620 alloy steel with a nitride finish and features an external extractor compatible with both Glock and Colt pattern magazines. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.
Lower Parts Kit and Buffer System
The complete Mil-Spec AR-15 lower parts kit covers the internal lower receiver components. The buffer system includes a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an AR-15 9mm carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black pairs with the included Mil-Spec carbine buffer tube and covers the rear brace interface for this AR-9 pistol lower build kit.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify local and state laws regarding pistol brace use and classification. Verify compatibility with your specific 9mm AR-9 lower receiver and magazine pattern before use.
