SILENCER SATURDAY #327: YHM Mounts & Muzzle Devices – Locking In The Bad Larry

Good afternoon everyone and welcome back to TFB’s Silencer Saturday brought to you by Yankee Hill Machine, manufacturers of the brand new YHM 338 Bad Larry Suppressor. Last week we took some initial shots with the YHM Bad Larry 338 rifle suppressor. This week we take a look at the compatible mounts and muzzle devices that can lock in the Bad Larry to your host firearm. Which one is right for you? Let’s take a look.

Editor’s Note: The laws and regulations surrounding the National Firearms Act (NFA) are complicated. Know and understand your local, state, and federal laws before making any alterations to firearms and suppressors. I personally believe that NFA regulations shouldn’t exist, but until the laws are repealed, make sure to stay safe and legal.

SILENCER SATURDAY #327: YHM Mounts & Muzzle Devices - Locking In The Bad Larry

It wasn’t long ago that picking a muzzle device was dependent on your suppressor make and model. We forget, and probably take for granted, that picking out a new silencer meant that you were making a lifetime commitment to a system and a manufacturer – a near cult-like membership akin to Ford vs Chevy followers. It was either that, or decide that you were going to be in the smaller group of direct-thread devotees that simply chose to abstain from the muzzle device and mount wars.

Besides the time and energy it takes to swap out a flash hider from one company to a muzzle brake from another, there is a cost aspect as well. Investing in a mounting system meant that all of the suppressors you owned from that manufacturer could be swapped across different hosts (caliber requirements aside, obviously). And the cost of having to purchase two or three muzzle devices every time you purchase a new suppressor can add up quickly, with some companies charging close to $200 for a single muzzle device.

During this time, the YHM mounting system and muzzle devices were highly regarded for their one-handed attach and remove characteristics, solid locking features, and reasonable costs compared to other options. As time moved on, manufacturing processes improved, designs evolved, and manufacturers made systems that were lighter, less complex, and compatible with other brands. We are still working on the affordability part of this equation.

The 1.375 x 24 “HUB” adapter system was a simple answer to the question of how to make a variety of muzzle devices adaptable across a wider selection of suppressor manufacturers. Today, all the major silencer companies offer models outfitted with the HUB thread pattern.

In the last few years, YHM has added HUB compatible mounts for the classic YHM Phantom muzzle brakes and flash hiders. They have also added kurz (‘k’ or small size) Phantom muzzle devices and a newer, lightweight mount system called the sRx. Let’s take a look at the complete lineup to see which one fits your needs.

The HUB direct thread mount comes standard with all HUB compatible YHM silencers and does not require the use of a muzzle device.

The original YHM Phantom mount adapted for 1.375 x 24 threaded suppressors, like the Bad Larry.

Muzzle Device: Phantom QD Muzzle Brake

Muzzle Device: Phantom QD Flash Hider

The original YHM Phantom Flash Hider with integrated QD mount capability.

YHM Phantom QD capabilities but shorter and lighter than the full size Phantom QD HUB mount.

Muzzle Device: Mini Phantom QD Flash Hider

Save on added length by using a shorter flash hider (or muzzle brake below).

Muzzle Device: Mini Phantom QD Muzzle Brake

YHM’s latest mounting system that is compact and light. Compatible with all sRx muzzle devices.

Product Page: https://yhm.net/1-375-24-hub-accessories/srx-q-d-adapter/
MSRP: $89.95
TIMELESS. (No need to shim/time to barrel)
Small/low profile; Light weight; No moving parts
Large taper in front of the threads allows for consistent mounting.
Can be permanently attached to firearm barrel needed

Muzzle Device: sRx Mini Muzzle Brake

The smallest YHM muzzle device weighs in at just over one ounce. Paired with the sRx QD HUB mount adapter above, this system is as close to direct thread as it is going to get.

Muzzle Device: sRx Short Muzzle Brake

Muzzle Device: sRx Muzzle Brake

Muzzle Device: sRx Short Flash Hider

Muzzle Device: sRx Flash Hider

The full size YHM sRx flash hider is still fairly light, especially when compared to the YHM Phantom flash hider shown above.

All of the sRx muzzle devices on the YHM Bad Larry cycled the SIG Sauer MCX Rattler on either gas setting. This may be stating the obvious, but for the smallest host weapon configuration possible, go with the sRx mini muzzle brake and the sRx QD adapter. Just be aware that because of its size, the flash is only slightly better than a bare muzzle and the blast is loud enough to wake the dead. Then again, only an uncivilized person would shoot unsuppressed.