Apparition InstrumentsRB2 (1/2x28)
Muzzle Device · attaches to 1/2x28 · presents CAT 1x16LH QD · fits 806 suppressors in the catalog
length
1.99″
thread
1/2x28
+1 more thread pitch
material
4140 QT
standard
CAT 1x16LH QD
MSRP
$90
A barrel adapter screws onto your rifle's threaded muzzle and stays there. It gives the muzzle a mounting interface, so the suppressor attaches to the adapter instead of the bare barrel threads. One adapter per rifle lets you move one suppressor between them. Many are quick-detach designs, and some also work as a muzzle brake or flash hider.
This one fits barrels threaded 1/2x28 and presents the CAT 1x16LH QD interface. A suppressor with a matching CAT 1x16LH QD mount attaches to it. It comes in 2 thread pitches, so pick the one that matches your barrel.
How mounting systems work →- Type
- Muzzle Device
- Overall length
- 1.99″
- Material
- 4140 QT
- Finish / treatment
- QPQ Black Nitride
- Attaches to
- 1/2x28
- Presents
- CAT 1x16LH QD
- MSRP
- $90
Not published by the manufacturer: weight.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
806 suppressors in the catalog take this part, across 113 manufacturers including AAC, AB Suppressor, Abel Co. You aren't locked into one manufacturer's suppressors.
- AAC 300-SD
- AB Suppressor A-10 5.56
- Abel Co Biscuit
- …and 803 more.
Which ones fit your barrel and host?
See all 806 in the Builder- 1/2x28
- 5/8x24
Apparition Instruments sells this part in 2 thread pitches. They are one product on this page; pick the pitch that matches your barrel in the Builder.
- AI’s shimmed Brake is designed to support both higher flow and reduced flow suppressor systems, whilst still providing significant barrel rise stabilization. Combining cutting-edge FLOW design engineering, this Brake is an essential upgrade for professionals using CQB platforms.
- Features precision-machined 1/2×28 or 5/8×24 RH barrel threading, combined with a 1x16LH suppressor QD thread.
- Incorporates a concentric 20° taper shoulder for correct sealing between the suppressor and QD threads.
- Overall length: 1.99”
- Constructed from 4140 QT, ensuring exceptional strength, wear resistance, and durability.
- Treated with QPQ Black Nitride.