PRE-ORDER Guidance
As you are probably aware, recent updates to ATF's eForm approval process has resulted in drastically improved turnaround times. While this is certainly a positive change, it has also had a predictable impact on suppressor inventory across the industry.
With that in mind, if you know you want a particular suppressor (or three) and it isn't in stock, your best bet is to place a "PRE-ORDER" so that we can purchase your desired suppressor the moment it becomes available from our distributors. If you wait until it shows in-stock on the website, you might miss your opportunity. PRE-ORDER helps us seek out and purchase what you are looking for. This is true whether you buy from us or someone else.
Thank you for considering Longbow Arms, we hope to earn your business.
M4SD-K
The M4SD K uses our Patented ECO-FLOW™ baffle technology. Our patented baffling allows the M4SD K to outperform other competing full size flagship suppressors. This high performance is coupled with low system backpressure for optimal reliability. The M4SD K offers users a wide range of mounting options using our variety M4SD mounts and compatible A2 compensators.
The M4SD K brings advanced CNC manufacturing, wire EDM, TIG fusion and filler rod welding, together in one full spectrum product.
Unique to Griffin M4SD family suppressors is it's SDQD GATE-LOK™ mounting interface. The GATE-LOK™ mounting system is one of the fastest on the market and accommodates the A2 nato compensator as well as Griffin's proprietary GATE-LOK™ series performance rich muzzle device options.
Additionally the GATE-LOK™ mounting system does not suffer from the wear prone issues of ratcheting systems common to the marketplace.
Our mounting system was designed to provide trouble free use. The mounts of the M4SD family of sound suppressor are precision ground to ten thousandths of an inch for minimal, repeatable and completely dependable point of impact shift.
Warrantied on Following barrel lengths: No barrel restrictions! While longer barrels promote longer service life, this suppressor has no length restrictions!
INCLUDED GATE-LOK™ HAMMER COMP MUZZLE DEVICE
*Silencer interface was designed to fit the USGI A2 government contract compliant muzzle devices. We cannot guarantee fitment with an A2 style compensator due to the broad tolerance range of both import and domestic devices from various brands. For guaranteed fitment, we recommend the purchase a Griffin GATE-LOK™ muzzle device.
- Tig Fusion Welded
- Flawless Bore Technology
- ECO-FLOW™ Baffle Technology
- Minimal BackPressure Design
- Extremely versatile and fast mounting system
- Full Auto rated on 10.5" barrels and longer
- High strength, high temp, corrosion resistant 17-4PH Stainless Steel
- GATE-LOK™ Hammer Comp Included
- Silencer Pouch Included
- M4SD shims and overtravel stop Included
- Compatible with M4SD or A2 Nato Spec Compensators
- Cerakote Finish
- Covered by Griffin's Perpetual Lifetime Warranty™
Inventory and Ordering Guidance
Longbow Arms attempts to keep popular items in stock, however, if you want something not listed on the site, please reach out to us so we can discuss ordering that item. Under normal conditions, non-NFA items can be ordered and received within 5-10 business days.
For NFA items, Dealer to Dealer and Manufacturer to Dealer transfers are subject to eForm 3 approval times which are currently running 7-14 days.