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  • Packages
  • Airsoft Guns
    • Electric Guns By Brand
      • Arcturus
      • Ares
      • E&L
      • King Arms
      • Raven Evolution
      • EMG
      • KWA
      • VFC
    • Electric Guns By Models
      • M4/M16/416 Series
      • AK Series
      • DMR Series
      • G36 Series
      • LMG Series
      • Scar Series
      • Sub-Machine Guns
      • Other
    • Gas Pistols By Brand
      • Cybergun
      • Farsan
      • KJW
      • KWC
      • SRC
      • WE
      • Wingun
    • Gas Pistols By Gas Type
      • CO2 Pistols
      • Green Gas Pistols
    • Gas & HPA Rifles
      • Matador Tactical GAS Shotguns
      • WE GAS RIfles
      • VFC GAS Rifles
      • Wolverine HPA Rifles
      • KWA GAS Rifles
    • Spring Guns
    • Used/Upgraded/Consignment Guns
  • Airsoft Supplies
    • Airsoft Gun Magazines
      • Electric Gun Magazines
      • Gas Pistol Magazines
      • Gas Rifle Magazines
      • Spring Gun Magazines
    • Batteries
      • 7.4v LIPOs
      • 11.1v LIPOs
      • Other
    • Battery Chargers
    • BB's
      • Biodegradable
      • Non-Biodegradable
      • Tracers
    • BB Speed Loaders
    • CO2 & Green Gas
    • Gas Accessories & Adapters
    • Grenades & Launchers
      • 40MM Grenade Shells
      • Grenade Accessories
      • Grenade Launchers
      • Hand Grenades
      • Smoke Grenades
  • Airsoft Parts
    • AEG Inner Barrels, Hop-Up Units, etc.
      • AEG Buckings & Nubs
      • AEG Hop-Ups
      • AEG Inner Barrels
    • High Pressure Air
      • HPA Engines
      • HPA Parts
      • HPA Regulators & Lines
      • HPA Tanks
      • HPA By Brands
    • Internal AEG Parts
      • Air Nozzles
      • Cylinders & Heads
      • Gearboxes
      • Gears, Bushings & Shims
      • MOSFETs
      • Motors
      • Pistons
      • Piston Heads
      • Selector Plates
      • Springs
      • Tappets
      • Triggers
      • Wiring & Trigger Contacts
    • Gas Gun Parts
      • Gas Pistol Parts
      • Gas Rifle Parts
    • Pistol Grips
    • Rails & Conversion Kits
      • Conversion Kits
      • Rails
    • Receiver Parts
    • Sling Adapters & Plates
    • Spring Gun Internals
    • Stocks
    • Tech Services & Tools
  • Airsoft Accesories
    • Barrel Attachments
      • Barrel Adapters
      • Flash Hiders
      • Outer Barrels
      • Suppressors
      • Tracer Units
    • Bipods
    • Foregrips
    • Lights & Lasers
      • Accessories
      • Lasers
      • Lights
      • Light & Laser Combos
      • Mounts
    • Optics & SIghts
      • Magnified Optics
      • Non-Magnified Optics
      • Optic Accessories & Protection
      • Iron Sights
    • PEQ Boxes
  • Apparel
    • Belts
    • Footwear
      • Altama
      • Boot Accessories
      • Smith & Wesson
      • Socks
      • Surplus
      • Original Swat
    • Gloves
      • Tactical Gloves
      • Winter Gloves
    • Headgear
      • Balaclavas & Face Wraps
      • Boonie Hats
      • Ball Caps
      • Toques
      • Shemaghs
    • Jackets & Coats
    • Morale Patches
      • Flags
      • Morale Patches
    • Pants
      • Shadow Elite
      • Surplus Pants
    • Shirts
      • Shadow Strategic Combat Shirts
      • Shadow Strategic Combat Coats
      • Surplus Shirts
      • T-Shirts
    • Shorts
  • Tactical Gear
    • Bags
      • Backpacks
      • Duffel Bags
      • Gun Bags & Cases
      • Other Bags
      • Shoulder Bags
    • Communication
      • Communication Accessories
      • Mics & Headsets
      • Radios
    • Elbow & Knee Pads
      • Elbow Pads
      • Knee Pads
    • Eye & Face Protection
      • Eyewear Accessories
      • Eye Protection
      • Full Face Masks
      • Lower Face Protection
    • Helmets
    • Holsters, Belts & Leg Rigs
      • Battle Belts
      • Holsters
      • Leg Rigs
      • Tactical Belts
    • Hydration
    • K9 Gear
    • Modular Pouches
      • Admin Pouches
      • Dump Pouches
      • Magazine Pouches
      • Medical Pouches
      • Other Pouches
      • Utility Pouches
    • Outdoors
      • Knives/Axes/Tools
      • MRE Food Packs
      • Rope & Cord
      • Sleep Gear
    • Plate Carriers, Chest Rigs & Vests
      • Chest Rigs
      • Modular Vests
      • Plate Carriers
    • Security
      • Field Notebook Covers
      • Handcuffs
      • Note Books
      • Self-Defense
    • Slings
  • Upgrade & Repair Services
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  • Home
  • Rails, Conversion Kits & Externals

164 products

Rails, Conversion Kits & Externals

Sold out
5KU One O'clock Offset Side Rail Mount - Black
5KU One O'clock Offset Side Rail Mount - Black $23.99
Sold out
6mmProShop Plan Beta RMR Mount Base for SIG Sauer M17 GBB Pistols
6mmProShop Plan Beta RMR Mount Base for SIG Sauer M17 GBB Pistols $69.99
Sold out
ACM 34mm Tactical Scope Adapter/Weaver Base
ACM 34mm Tactical Scope Adapter/Weaver Base $7.99
ACM 45-Degree Rail Adapter - Black
ACM 45-Degree Rail Adapter - Black $14.99
ACM FAST 20mm Rail Riser
ACM FAST 20mm Rail Riser $25.99
Sold out
ACM One O'Clock Side Mount - Dark Earth
ACM One O'Clock Side Mount - Dark Earth $15.99
Sold out
ACM Spring Bipod - Black
ACM Spring Bipod - Black $19.99
Sold out
ACM Swinging Bipod w/20mmm QD - 6"
ACM Swinging Bipod w/20mmm QD - 6" $69.99
Action Army AAP-01 RMR Mount Adapter & Front Sight
Action Army AAP-01 RMR Mount Adapter & Front Sight $69.99
Sold out
Action Army CNC M-Lok Rail 60mm
Action Army CNC M-Lok Rail 60mm $29.99
Sold out
AIM Real Steel Grade CNC AK Double Side Rail Scope Mount
AIM Real Steel Grade CNC AK Double Side Rail Scope Mount $29.99
Sold out
AIM Sports 20mm Accessory Rail for Keymod Handguards - 15 Slot - Niagara Quartermaster
AIM Sports 20mm Accessory Rail for Keymod Handguards - 15 Slot $24.99
Sold out
AIM Sports Picatinny Rail Riser Mount Low-Profile Adapter
AIM Sports Picatinny Rail Riser Mount Low-Profile Adapter $14.99
Sold out
AIM Sports Scope Ring Set (Height: 1" Height / 1" Diameter)
AIM Sports Scope Ring Set (Height: 1" Height / 1" Diameter) $19.99
Sold out
AIM Sports Scope Ring Set (Height: 1.21" Height / 1" Diameter)
AIM Sports Scope Ring Set (Height: 1.21" Height / 1" Diameter) $19.99
Airtech Studios Polymer 20mm Accessory Rail for AM013 and AM014 Airsoft AEGs
Airtech Studios Polymer 20mm Accessory Rail for AM013 and AM014 Airsoft AEGs $27.99
Sold out
Amoeba Folding Modular M-Lok Bipod - Long
Amoeba Folding Modular M-Lok Bipod - Long $64.99
Sold out
Amoeba Striker AS-01 M-Lok CNC Handguards
Amoeba Striker AS-01 M-Lok CNC Handguards $124.99
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All orders $300+ are eligible for free shipping within Canada (territories excluded).

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Tuesday, Wednesday and Friday: 11:30 AM-6:00 PM EST Thursday: 11:30-7 PM EST Saturday: 11:00 AM-5:00 PM EST 905-937-3100 thenq@niagaraquartermaster.com 8B - 1874 HWY 20, Thorold ON Canada

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