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.
745–768 of 1785 products
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VO 34mm Steel Mounting Rings, Medium - Black
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CTM AAP-01 / G-Series GBB Extended Magazine Feed Spring
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CTM TM Hi-Capa GBB Safety Spring Pins Set – Silver
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CTM CNC Hi-Capa UnderMount RIS Rail Stock Adapter – Gold
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CTM CNC Hi-Capa UnderMount RIS Rail Stock Adapter – Silver
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CTM CNC Hi-Capa UnderMount RIS Rail Stock Adapter – Red
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CTM CNC Hi-Capa UnderMount RIS Rail Stock Adapter – Black
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CTM AAP-01 M4XIMUS Kit CNC Extended Rail Blast Shield – Red
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CTM AAP-01 M4XIMUS Kit CNC Extended Rail Blast Shield – Silver
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CTM AAP-01 M4XIMUS Kit CNC Extended Rail Blast Shield – Black
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CTM CNC Hi-Capa UnderMount RIS Rail Stock Adapter – Electroplated Rainbow
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STRIBOG MINIMALIST Folding RIS Stock (2 Pcs) – Black
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Tridos SSG11 Mag Release Protector – Black
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M4 / AR15 Front Body Pin with Screw – Black
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M4 / AR15 Front Receiver Pin – Grey
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M4 / AR15 Rear Receiver Pin – Grey
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AEG M4 Metal Buffer Tube – Black
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Metal CQD Sling Plate M4 / AR15 – Black
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SA M4 Light Ops Retractable Stock – Pink
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SA M4 Adjustable Tactical Stock – Tan
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SA M4 Adjustable Tactical Stock – Black
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AUS One-Piece 34mm RIS Scope Mount – Tan
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KAC URX6 10.5" M4 / AR15 M-LOK Handguard – Black
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SLA RIS Rail Sling Mount – BlackA 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.
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.
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.
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