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MHA/RHP

  • MHA
    The MHA is a rigid, flex-free holster platform with 6061-T6 aluminum clamping and adjustable ride height and cant for Safariland-pattern holsters.
  • RHP
    The RHP is a rigid aluminum mid-ride holster platform with a curved backing, zero-shift lockup, and adjustable height and cant.
  • RHP Patrol
    A compact 6.25" duty-ready aluminum platform, the RHPP delivers locked-in belt stability and all-day comfort.

Accessories + Offsets/Mounts

  • Leg Straps
    True North Concepts carries a curated selection of leg strap kits and holster leg strap accessories built for shooters who need their holster locked in place during movement. Every leg strap in this collection is designed to pair with the Modular Holster Adaptor (MHA) and Rigid Holster Platform (RHP), giving you adjustable height positioning, a comfortable fit around your leg, and zero shift under stress. Available from True North Concepts, GBRS Group, and Forge Concepts. Browse leg straps, bracket kits, and spare hardware below.
  • DAB 6 Degree Offset Spacer
    Under 2 oz, this 6061-T6 mount adds a 6° natural-draw cant, extra armor clearance, and full Safariland compatibility.
  • TQ Mount
    Developed with the U.S. Coast Guard and Quantico Tactical, this ambidextrous tourniquet mount provides a durable, low-profile duty solution.
  • Universal Holster Mount
    A quick-install adapter that lets non-Safariland™ holsters attach to the MHA or any Safariland-pattern platform, unlocking broad cross-compatibility.
  • MHA/RHP Spare Hardware Kit
    A complete set of extra 8-32 screws, spacers, and posts for the MHA, RHP, LSK, and adapters, also compatible with many holsters and common gear.

Attachments

  • QLS
    True North Concepts carries a focused selection of QLS kits and Safariland quick locking system hardware built for shooters who need fast, reliable holster transitions without sacrificing retention. Every QLS kit in this collection is designed to work with Safariland holsters and compatible platforms. This gives you a stable platform, a secure locking fork connection, and the ability to swap your holster between a duty belt, battle belt, or tactical leg shroud in seconds. Browse QLS kits, receiver plates, and supporting hardware below.
  • Holster Pads
    A lightweight pad that eliminates holster pressure points/Hot Spots and boosts comfort with our MHA/RHP
  • Reese Wrap
    US-made, laser-cut 500D Cordura overlays that customize your MHA, reduce glare, and add abrasion protection.

View All Holster Adapters + Accessories

Handstops

  • GripStop Standard - Polymer/Aluminum
    True North Concepts carries the GripStop Standard handstop in polymer and 6061-T6 aluminum versions built for shooters who want reliable hand placement and weapon control without adding unnecessary bulk to their rifle. Every GripStop Standard in this collection is designed to give your support hand a consistent reference point, a comfortable grip, and a low profile design that works with M-LOK rail sections and CMR accessories. Browse standard length handstops, versions, and configurations below.
  • GripStop K - Polymer/Aluminum
    True North Concepts carries the GripStop K AR handstop in polymer and 6061-T6 aluminum versions built for shooters who want consistent hand placement and firearm control on a compact, lower profile platform. Every GripStop K in this collection is designed to give your support hand a reliable finger stop, a built-in rear barricade stop, and a cable management system that keeps your setup clean on M-LOK and Picatinny rail. Browse GripStop K variants, versions, and configurations below.
  • GripStop Picatinny
    The Picatinny GripStop offers refined ergonomics, reduced weight, rugged construction, and enhanced military-grade performance.
  • GripStop Reach
    A compact hand stop that mounts to one M-LOK slot while extending over the next, giving ideal hand placement even on obstructed rails.
  • GripStop S2
    Smaller than our K2 GripStop offering superior ergonomics, reliable performance, and true M-LOK versatility.
  • GripStop K2
    A tough, compact GripStop offering superior ergonomics, reliable performance, and true M-LOK versatility.
  • PewStop
    The PewStop offers enhanced control in a compact billet design with Type III anodize and M-LOK compatibility.
  • Limited Edition
    A limited-release GripStop with the same proven control and durability, offered as a collectible special run for those who want something truly unique.

Multi Angle Grips

  • Zero-8 MLOK
    Adjustable-cant aluminum grip delivering excellent ergonomics, durability, and compatibility with carbines, submachine guns, and shotguns.
  • Zero-8 Picatinny
    Rugged 6061-T6 aluminum Picatinny grip with adjustable cant for improved ergonomics, durability, and weapon control.

Spares

View All Angled Grips + Handstops

Ergonomics

  • GripStops
    Durable foregrip for improved recoil management.
  • Zero-8
    Smarter. Stronger. The next evolution of grip control.

Risers

  • STRIX-16
     16 Slot purpose-built optic riser engineered for shooters who demand precision and flexibility in their setups
  • STRIX-9
     9 Slot purpose-built optic riser engineered for shooters who demand precision and flexibility in their setups

Holsters + Accessories

  • Holsters + Accessories
    Discover trusted Safariland™ holsters for rock-solid retention, enhance your draw with the NUB Mod’s optimized release angle, and keep your rig running clean with the Ghostman Designs Portal engineered to let debris fall away for smooth, reliable holstering.
  • The Racker
    The Racker lets you safely rack a pistol one-handed without damaging your holster or sights, mounting easily to belts, MOLLE, or fixed surfaces.

Muzzle Devices

  • TNC 4PS
    Superior flash control. Seamless KeyMo compatibility.

Gun Gear - Miscellaneous

  • Gun Butter
    Full-synthetic, non-toxic, and weather-resistant gun lubricant.
  • Shim Kits
    Precision shim kit for optimal muzzle device timing.

View All Gun Gear

Belts

  • GBRS Assaulter V3
    Lightweight, durable two-belt systems designed to provide a stable platform for attaching gear and accessories.
  • Ferro Concepts Bora
    Streamlined, reinforced platform with MOLLE integration and Bora Webbing Lock™

Pouches

  • Rifle
    Reliable, durable rifle magazine pouches designed for secure retention and quick access.
  • Pistol
    Versatile pistol magazine pouches built for consistent performance and easy, fast reloads.

Accessories

  • Ferro Bridges
    Velcro-backed bridge that maintains solid belt contact when using MHA/RHP holster platforms.

Slings

  • GBRS
    Minimalist, highly adjustable slings built for smooth movement, reliable weapon control, and user-tailored comfort.
  • Ferro Concepts
    Highly adaptable slings featuring rapid adjustment capability and user-configurable hardware options for a personalized setup.
  • QD Mounts
    Durable quick-detach mounts designed for secure, reliable sling attachment.

View All Soft Gear

Apparel

  • Hoodies
    Comfortable, midweight pullovers built for daily wear—featuring soft fleece interiors and relaxed, functional fits.
  • Tees
    Comfortable, garment-dyed tees offering a lived-in feel, reliable durability, and a clean, minimalist look

Swag

  • Patches
    Hook-backed patches for easy customization of gear and apparel.
  • Stickers
    Logo stickers for gear, laptops, vehicles, and more.
  • Misc
    Small gear essentials built to withstand daily use and rugged conditions.

View All Apparel + Swag

New
True North Concepts Muzzle Device, KeyMo Compatible, Flash Suppressor, 4-Prong, Short, 1/2-28, Cal 5.56
True North Concepts Muzzle Device, KeyMo Compatible, Flash Suppressor, 4-Prong, Short, 1/2-28, Cal 5.56
True North Concepts Muzzle Device, KeyMo Compatible, Flash Suppressor, 4-Prong, Short, 1/2-28, Cal 5.56
True North Concepts Muzzle Device, KeyMo Compatible, Flash Suppressor, 4-Prong, Short, 1/2-28, Cal 5.56
New

True North Concepts Muzzle Device, KeyMo Compatible, Flash Suppressor, 4-Prong, Short, 1/2-28, Cal 5.56

$109.00

FG-MD-4PS-1228

California Compliance Notice

Recent California regulations impose additional requirements on the sale and transfer of certain firearm accessories. To ensure full compliance, this product is not available for shipment to California at this time.

Key Features

  • Superior Flash Suppression – The 4-prong design significantly reduces muzzle flash for improved concealment, operational effectiveness, and reduced detection risk in tactical settings.
  • KeyMo QD/HUB Compatible – Seamlessly integrates with Dead Air KeyMo suppressors and HUB-compatible suppressors for quick and secure attachment.
  • Built for Harsh Conditions – Featuring a Black Nitride finish, this flash suppressor is resistant to corrosion, wear, and extreme environments, ensuring longevity and reliability.
  • Precision Fitment – ½-28 thread pitch ensures a secure fit on .223/5.56 platforms, including duty and defense rifles.
  • Overall Length: 2.45”
  • Adds Approximately: 1.82” to barrel length
  • Made in the USA – Proudly designed and manufactured for those who demand uncompromising performance.
  • ITAR Controlled – No exports.

Performance You Can Trust

The True North Concepts 4PS Dead Air KeyMo Compatible Flash Suppressor offers unmatched performance for those who rely on their equipment. Whether used on its own or paired with a KeyMo suppressor, the 4PS delivers superior flash suppression for optimal concealment. Its robust design ensures it can handle harsh environments, keeping your rifle ready for any mission.

When seconds matter, trust the 4PS to deliver on its promise. Its precise engineering and durable construction make it an essential part of your shooting setup. With this flash suppressor, you gain enhanced concealment and the ability to maintain focus on follow-up shots, whether you’re engaged in tactical operations, training, or competition.

Frequently Asked Questions

  • The 4PS is designed for .223/5.56 platforms and works seamlessly with Dead Air’s KeyMo suppressors when using Dead Air’s KeyMo Adapter (DA428) or KeyMo “S” Mount (DA429), this includes silencers from SilencerCo, YHM, CGS, Griffen Armament and Energetic Armament and more.

  • The 4PS suppressor features a ½-28 thread, which is the standard for .223/5.56 platforms.

  • The overall length of the 4PS suppressor is 2.45 inches, adding approximately 1.82 inches to the overall length of your barrel.

  • The Black Nitride finish provides increased durability by making the suppressor resistant to corrosion, wear, and extreme environments, ensuring reliable performance over time.

  • Yes, the 4PS suppressor is proudly designed and manufactured in the United States for professionals who demand the highest quality.

  • Yes, the 4PS is designed with military and law enforcement in mind, offering high-quality performance, reduced flash signature, and enhanced operational effectiveness in the field.

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