AIM7 Bravo / HUB (1.375×24) to “D” Cell (1-7/16×20) Thread Adapter – 4140 Steel QPQ

Description

The AIM7 Bravo/HUB to “D” Cell Adapter allows you to mount industry-standard 1.375×24 (Bravo / HUB) mounting systems and accessories directly into tubes threaded for 1-7/16×20 (Common “D” Tube / 1.4375×20).

Precision CNC-machined from 4140 chromoly alloy steel and finished with a durable QPQ Black Nitride treatment, this adapter delivers exact concentricity, high wear resistance, and reliable structural integrity under heavy recoil and harsh operating conditions.

Key Features

• Industry Standard HUB Compatibility: Converts internal 1-7/16×20 “D” size tube threads to accept female 1.375×24 TPI Bravo/HUB accessories.

• 4140 Steel Construction: Built from heat-treated 4140 steel for maximum strength over lightweight aluminum alternatives.

• QPQ Nitride Finish: Quench-Polish-Quench salt bath nitrocarburizing provides superior corrosion resistance, surface hardness, and a sleek matte black finish.

• Compact Footprint: Adds minimal overall length to your setup while preserving concentric alignment.

Technical Specifications

• Internal Thread (Female / Device Mount): 1.375×24 TPI (Bravo / HUB standard)

• External Thread (Male / Tube Mount): 1-7/16×20 TPI (Common “D” tube standard)

• Material: 4140 Chromoly Steel

• Finish: QPQ Black Nitride

• Overall Length (OAL): 0.93″

• Weight: 1.3 oz

Verified Mounting System Compatibility (1.375×24 TPI External)

This adapter is compatible with 1.375×24 Bravo/HUB mounting systems and accessories from:

• SilencerCo: Bravo ASR Mount (AC824)

• Dead Air: KeyMo (Bravo / Omega pattern)

• Q LLC: Plan B (Bravo pattern)

• Griffin Armament: Plan-A (Bravo / HUB)

• Yankee Hill Machine (YHM): Phantom QD Adapter

• Area 419: Hellfire / Sidewinder Universal Adapters

• Energetic Armament: HUB Mounts

• JMAC Customs: BDS & X-Series HUB Mounts

• Rex Silentium, Torrent Suppressors, SDTA, Super Precision Concepts, Enfield Rifle Company, Ronin Factory, Aklys Defense