Strategic Sciences 5.56 MFMD

STRATEGIC SCIENCES MFMD 5.56 - FLASH HIDER, MUZZLE BRAKE, AND SUPPRESSOR IN ONE

Every other muzzle device on your rifle forces a trade-off. You priortize flash suppression, recoil control, or sound reduction. The Strategic Sciences Multi-Function Muzzle Device refuses that compromise. Developed under contract with the U.S. military's Irregular Warfare Technology Support Directorate and engineered by Russ Oliver, the founder of OSS Suppressors, the MFMD is a two-piece Inconel flow-through suppressor system that handles all three problems simultaneously. The muzzle device installs directly over the barrel threads and the suppressor module locks into place in front of it, adding minimal length to the host weapon while delivering up to 99% first-round flash reduction, up to 60% recoil reduction for faster follow-up shots, and sub-140 dB hearing-safe performance. The design vents gas forward, keeping bolt velocity change to within 2% of baseline across all firing schedules and reducing back pressure on the host platform. The 5.56 MFMD is optimized for 1/2x28 threaded rifles and is available in multiple over-the-barrel (OTB) clearance configurations to fit a wide range of host platforms from ultra-short SBRs to full-length carbines. Available in Black and Flat Dark Earth.

IMPORTANT NOTES

The MFMD is available in several configurations.  The caliber, thread pitch, and color are obvious, but the other two aspects can be a bit confusing.  The associated number (0.0 or 1.3) indicates a flush fit (0.0) or a reflex design (1.3).  In the case of the reflex 5.56 model, the 1.3 version extends 1.3" rearward of the muzzle.  The "MD" designation applies to the standard "muzzle device only" model, while the SD (suppressor device) and SDX (suppressor device extended) add modules that attach to the muzzle device for improved suppression.  

CAPITOL ARMORY'S OPINION

The MFMD is one of the most unusual suppressors we carry. This system started as a classified military development program and found its way to the commercial market. The zero-blowback design addresses one of the biggest complaints about suppressed rifles in a fundamentally different way than conventional baffled cans. The 2% bolt velocity figure is important, as it means you can suppress your rifle and not spend an afternoon re-tuning. The flash reduction numbers are impressive for a device this compact, which matters if you're running night vision or just don't want to blow your dark adaptation on a nighttime range session. The fitment system requires careful measurement of your host if you're running the 1.3" OTB model. The MFMD is best suited for a single rifle, as this is a specialized product designed to fit the exact needs of a shooter's specific host.

FEATURES

• Two-piece suppressor system: muzzle device plus optional modular suppressor module
• Up to 99% first-round flash reduction
• Up to 60% recoil reduction for faster follow-up shots
• Sub-140 dB hearing-safe performance
• 2% bolt velocity change versus baseline
• 4.7" MFMD, 7.75" with SDX
• 20 ounces (MFMD only), 34 ounces (with SDX)
• Inconel construction, 3D printed via additive metal manufacturing
• Durability engineered to match a full barrel life cycle
• Multiple OTB clearance variants for broad platform compatibility (0.0", 1.3")
• 1/2x28 thread pitch, 5.56/.223 caliber
• Available in Black and Flat Dark Earth
• Developed under IWTSD contract for U.S. military use
• Designed by Russ Oliver, founder of OSS Suppressors

AVAILABLE MODELS

• 0.0 MD - 1/2x28 - Flush fit, muzzle device only.
• 0.0 MDSDX - 1/2x28 - Flush fit, muzzle device plus extended suppressor device
• 1.3 MD - 1/2x28 - 1.3" Reflex design, muzzle device only
• 1.3 MDSDX - 1/2x28 - 1.3" Reflex design, muzzle device plus extended suppressor device

WHAT'S INCLUDED

• MD Muzzle Device
• Shims
• Instruction manual
• Tool
• SDX Suppressor Device (designated models)