Comstock Armory Alpha Titanium LPA
Original price was: $95.00.$89.00Current price is: $89.00.
Comstock’s Alpha-pattern LPA suppressor adapter threads onto Comstock or Rearden Plan-B muzzle devices and accepts Alpha/1.125-28 threaded suppressors like the Octane, Omega, and Spectre. Machined from Grade 5 titanium, it weighs just 0.7 ounces, making it the lightest Alpha adapter built for the Plan-B system. The 1-1/16″ wrench flats and 0.3″ added length keep installation quick and the footprint tight.
1 in stock
Description
Comstock Armory Alpha Titanium LPA Suppressor Adapter
The Comstock titanium suppressor adapter in this Alpha-pattern LPA design answers a problem most PCC and subgun shooters eventually run into: how to add quick-detach suppressor capability without piling extra weight onto the muzzle end of the gun.
Machined from Grade 5 titanium and finished in a durable PVD coating, this Alpha-pattern LPA weighs just 0.7 ounces, which makes it the lightest Alpha adapter available for the Plan-B mounting system. Because the adapter threads onto Comstock and Rearden Plan-B muzzle devices with standard 1.125-28 (Alpha) threads, it opens the door to nearly every handgun and subgun suppressor built around that spec, including the Octane, Omega, Cash/Rad 9, PTR Vent 2, and Spectre. The design adds only 0.3 inches of length past the muzzle device, so shooters keep the same footprint they built their gun around, even after adding a can.
Key Features — Comstock titanium suppressor adapter
- Grade 5 titanium construction for maximum strength at minimum weight (0.7 oz)
- Durable PVD finish holds up to repeated mounting and dismounting
- Standard 1.125-28 (Alpha) threads, compatible with common handgun and subgun suppressors
- 1-1/16″ wrench flats for straightforward installation and removal
- Adds just 0.3″ of length to the host muzzle device
- Fits Comstock and Rearden Plan-B pattern muzzle devices
Why This Product Stands Out
Most Plan-B adapters on the market are steel, and steel adds up fast when it sits out past the muzzle device on a PCC or subgun build. Comstock cut that weight penalty by machining this adapter from Grade 5 titanium instead, which is why it comes in at a fraction of an ounce over comparable steel hardware. For shooters running lightweight PCC uppers or SBRs, where every ounce forward of the receiver affects handling, that difference is the whole point of choosing titanium in the first place.
The Alpha thread pattern also matters here, since it has become something of a standard for handgun-caliber suppressors. Once this adapter is threaded onto a Comstock or Rearden Plan-B device, hosts like the Octane, Omega, Cash/Rad 9, PTR Vent 2, and Spectre all thread on directly, which means shooters aren’t locked into a single suppressor brand just because they committed to a mount. That kind of cross-compatibility is what makes Plan-B worth building around, rather than a proprietary quick-detach system tied to one manufacturer.
Because the adapter only adds 0.3 inches past the muzzle device, that extra length rarely changes a gun’s handling enough to notice, even on compact builds. Paired with the 1-1/16″ wrench flats, that makes swapping a suppressor on and off a quick, tool-friendly process instead of a wrestling match.
Ideal Use Cases
- PCC and subgun suppressor hosting
- SBR builds where forward weight affects handling
- Multi-suppressor collections built around the Alpha thread standard
- Quick-detach mounting for range or duty use
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Comstock Armory |
| Model | Alpha – Titanium LPA |
| Mount Pattern | Plan-B (Comstock / Rearden) |
| Thread Pattern | 1.125-28 (Alpha) |
| Material | Grade 5 Titanium |
| Finish | PVD |
| Added Length | 0.3″ |
| Weight | 0.7 oz |
| Wrench Flats | 1-1/16″ |
| UPC | 850069580209 |
| SKU | LPA-A-TI |
Compatibility Information
Suppressor Compatibility: Alpha / 1.125-28 threaded suppressors — including the Octane, Omega, Cash/Rad 9, PTR Vent 2, and Spectre — thread directly onto this adapter, since they all share the same thread spec.
Muzzle Device Compatibility: Fits Comstock and Rearden Plan-B pattern muzzle devices, so shooters already running either platform can add this adapter without swapping the base muzzle device.