$76.46
1 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
Threading a suppressor on and off every barrel you own gets old fast. Griffin Armament's 3-Lug Adapter fixes that by converting a standard .578×28 threaded .45 caliber barrel into a quick-detach mounting point. Spin it onto your barrel once, and from then on your suppressor snaps on and off in about a second with a simple twist. That means one can can rotate across your pistols, pistol caliber carbines, and anything else wearing one of these adapters without breaking out the wrenches.
This adapter is machined from 17-4PH stainless steel and treated with a Melonite QPQ finish, the same recipe Griffin uses across its suppressor mounting hardware. The result is a dense, wear-resistant black surface that stands up to blast erosion, carbon buildup, and repeated mounting cycles. There's no coating to flake or soft steel to peen out over time, which matters on a part that lives at the loudest, hottest spot on your gun.
This is the .45 caliber version with .578×28 threads, the most common thread pitch on threaded .45 ACP barrels, so it covers a huge range of pistols including 1911s, HK45s, and threaded Glock 21 barrels. One thing worth knowing before you order: the .45 caliber 3-lug pattern is larger than the standard 9mm HK-style lug, so this adapter pairs with Griffin's .45 3-Lug Interface Assembly rather than a typical 9mm 3-lug mount. If you're running a Griffin Optimus, Bushwhacker 46, or another can set up with the .45 3-lug interface, this is the piece that ties it all together.
For anyone building out a multi-host suppressor setup around larger bore pistols, adapters like this are cheap insurance and a big convenience. Buy one for each host barrel, leave them installed, and your suppressor moves wherever you need it without any fuss at the range.
No, and this trips people up. The .45 caliber 3-lug pattern is dimensionally larger than the standard 9mm HK-style lug, so this adapter is designed to pair with Griffin's .45 3-Lug Interface Assembly. If your suppressor is set up with a 9mm 3-lug mount, you'd want one of Griffin's 9mm adapters instead.
It threads onto any barrel with .578×28 threads, which is the standard pitch for most threaded .45 ACP barrels. That includes threaded 1911 barrels, aftermarket Glock 21 barrels, and plenty of other .45 pistols and pistol caliber carbines. Just confirm your barrel's thread pitch before ordering since a few .45 barrels use 5/8×24 instead.
It's machined from 17-4PH stainless steel and given a Melonite QPQ surface treatment. That combination handles muzzle blast, heat, and carbon well, and the hard black finish resists wear from repeated suppressor mounting and dismounting.
Not really. Most folks leave the adapter installed permanently on each host barrel and clean around it, treating it like part of the barrel. That's the whole appeal of a 3-lug setup, the adapters stay put and the suppressor is the only thing moving between guns.
| UPC | 791154081723 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 3L57828 |
You must be logged in to post a review.
Reviews
There are no reviews yet.