LWRC SMG-45: The Perfect Suppressor Host

LWRC SMG-45: The Perfect Suppressor Host

Posted by Branden P. on Oct 23rd 2019

Land Warfare Resources Corporation, better known as LWRC, has finally sent out the long awaited SMG-45, and we got our hands on one. You probably guessed it, we got to do a video and range test on it. Meaning that we also got to dress her up and make her look nice.

Watch our YouTube review and range test where we tossed on a Gemtech Blackside and Holosun HS510C red dot sight.


If you're unfamiliar with the hype of this gun, it's chambered in .45 ACP and fires from a closed bolt using a proprietary short-recoil delayed blowback operating system, similar to the more notorious HK MP5. This highly anticipated SMG model is built on an AR platform, meaning that all of your favorite triggers, safety selectors, and bolt releases from your AR should fit. For those who are a fan of the HK UMP-45, stay ecstatic, because the SMG-45 uses the same magazines.

LWRC made a natural choice in chambering their first SMG in the classic .45 ACP cartridge. .45 ACP is inherently subsonic, and pairing that with the delayed blowback mechanism means the SMG-45 is the perfect suppressor host. The barrel and bolt travel rearwards together for a short distance before unlocking, which delays the opening of the action and allows the pressure to drop and more of the gas and pressure to exit the muzzle rather than the ejection port. This helps the muzzle be more effective, especially when suppressed, and cuts down the felt recoil substantially.


Also, one thing that has gotten some heat was their choice for chambering in .45 ACP, but if you look closely, the receiver says 'MULTI-CAL', and LWRC has said there will be conversions to 9mm, and possibly other calibers. 

Pictured above is the lower receiver showcasing the 'MULTI-CAL' engraving.

That's not all that's fancy with this gun. It comes with an SB Tactical pistol brace, a non-reciprocating forward charging handle that can be swapped for left or right handed charging, ambidextrous controls, paddle style magazine release, and LWRC's proprietary rail system. 




Check down below to see what we used in the video:

LWRC SMG-45

Holosun HS510C

Gemtech Blackside 45 ACP