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.
1345–1373 of 1791 products
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Trident M4 SPR Outer Barrel Assembly — Black
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B-2U Rail Section — Black
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P-IX Modular AR Platform for GLOCK without Stock — Black
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M-LOK Mount Charge — OD Green
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M-LOK Mount Charge — Black
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M-LOK Mount Charge — TanIn stock at our supplier, delivery in 5–10 working days
PRO 7-Slot M-LOK Picatinny Rail Section — Black
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Soft Rail Cover Model A for Keymod — Dark Earth
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Soft Rail Cover Model A for Keymod — Black
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Monolithic Extended Length M-LOK Handguard for MP5 — Black
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LCK Forward Optical Rail System — Black
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AK/AK74 Polymer M-LOK Picatinny Handguard — Black
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SSU Stock Stabilizer Unit Scorpion Evo 3 A1 — Black
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Daniel Defense 16" M4 Carbine Length Steel Outer Barrel — Black
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GOS-V7 Stock — Black
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Mil Spec TBS Sharp Low Profile Stock — Black
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Daniel Defense 9 Inch OmegaX Rail — Black
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Daniel Defense 9 Inch OmegaX Rail — Tan
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Barrel Nut Washer — Silver
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TLR-7X Flex — Black
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TLR-7X Flex — Dark Earth
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M4 Stock — Black
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7 Slot Rail Section For M-LOK / KeyMod — Black
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CNC Fire Selector AR15 B — Black
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Rail for VFC MP5K — Black
Out of stock, also at our supplier
TLR-1/2 Clamp Screw — Black
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G36 CV Stock — Black
Out of stock, also at our supplier
7 Slot Rail For VS Handguard — Black
Out of stock, also at our supplier
X400U — Dark EarthA 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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