AirsoftParts
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In stock at our supplier, delivery in 5–10 working days
Duralumin V2 / M4 AEG Gearbox Brace
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Externals: Handguards, Stocks & Receivers
Externals change how the gun handles and how it looks. Handguards with M-LOK or KeyMod, stocks and buffer tubes, metal receivers, outer barrels and grips for M4, AK and other platforms.
313–336 of 1791 products
LCT
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In stock at our supplier, delivery in 5–10 working days
AK-74 AEG Pistol Grip – Plum
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LCT
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In stock at our supplier, delivery in 5–10 working days
AK / LCKS Steel Folding Stock Button
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LCT
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
AK-74 AEG Ergonomic Pistol Grip – Black
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LCT
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In stock at our supplier, delivery in 5–10 working days
AK Upper RIS Rail System – Black
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ASG
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In stock at our supplier, delivery in 5–10 working days
Polymer Slide for ASG CZ P-09 GBB - Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
MP7 Sling Swivel End Adapter - Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
CNC Sling Swivel Mounting Base for P90 / SSR90, Long - Black
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LCT
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In stock at our supplier, delivery in 5–10 working days
M4 LTS CRANE Retractable Stock – Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
360° DD QD Sling Swivel RIS Mount - Bronze
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FMA
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In stock at our supplier, delivery in 5–10 working days
CNC LOWPRO 45° Handguard RIS Rail - Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
CNC LOWPRO 45° Handguard RIS Rail - Tan
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FMA
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In stock at our supplier, delivery in 5–10 working days
MP7 CNC Rail System Handguard for TM, Umarex, KSC, KWA GBB Replicas - Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
CNC LOWPRO 45° Mount for M300 / M600 Flashlight - Black
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FMA
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In stock at our supplier, delivery in 5–10 working days
CNC LOWPRO 45° Mount for M300 / M600 Flashlight - Bronze
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MadBull
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In stock at our supplier, delivery in 5–10 working days
Daniel Defense AR15 Lite Rail 12.0 ( BLACK )
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CYMA
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In stock at our supplier, delivery in 5–10 working days
RPK Gas Tube Rail
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5KU
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In stock at our supplier, delivery in 5–10 working days
B-33 AK RIS Aluminum Dust Cover - Black
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Element
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In stock at our supplier, delivery in 5–10 working days
Scout QD Offset Mount for Flashlight - TAN
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Action Army
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In stock at our supplier, delivery in 5–10 working days
AA CNC Bolt Handle for VSR-10, Right-Handed - Black
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RetroArms
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In stock at our supplier, delivery in 5–10 working days
CNC Bolt Forward Assist M4 / AR15 (Type A) – Black
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Action Army
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In stock at our supplier, delivery in 5–10 working days
AA Steel Hop-up Adjustment Wheel ARES Amoeba Striker AS01
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Action Army
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In stock at our supplier, delivery in 5–10 working days
AA CNC Steel Bolt Handle for VSR-10, Left-Handed - Grey
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Action Army
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In stock at our supplier, delivery in 5–10 working days
AA CNC Tactical Bolt Housing Receiver VSR-10, Left-Handed - Black
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Handguards, stocks and grips
A new handguard is the most visible external upgrade: a slim M-LOK or KeyMod rail saves weight over a quad Picatinny RIS and gives you mounting slots exactly where you want a light or a grip. Stocks change length of pull and battery space; a crane stock holds a nunchuck battery, a PDW stock makes a carbine compact. Pistol grips with a different angle and a motor plate that lets you adjust motor height improve comfort and trigger response at the same time.
Receivers and outer barrels
A metal receiver set replaces a polymer body for stiffness and a solid feel, and licensed versions carry real trademarks. Outer barrels in different lengths let you build a long rifle or a short CQB gun on the same lower, with a 14 mm CCW thread for a suppressor; the thread filter lists CW and CCW options. Flash hiders, gas blocks and barrel nuts complete the front end.
Compatibility between brands
Most M4 AEG externals follow the Tokyo Marui standard and fit between brands, but receiver pins, buffer tube threads and handguard nuts vary enough to check the product notes. AK, G36, MP5 and SCAR parts are more brand-specific, and GBB rifles use their own dimensions. Use the platform and rail system filters, and remember that externals are unrestricted parts with no age limit even though the complete guns are not.