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.
1249–1278 of 1792 products
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ProTac Rail Mount HL X Pro Jack-Cap — Black
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Picatinny Rail Section 10 Slots for Super Slim Handguard — Dark Earth
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IBS Inner Barrel Stabilizer Krytac Warsport LVOA-S — Black
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BSU Barrel Stabilizer Unit Updated Design AM014 — Black
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SG-Series High Type Mount Base — Black
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GR16 SOPMOD Tactical Stock — Desert
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Weapon Light Remote Controller — Black
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Ergonomic Overmolded Magwell Grip with Trigger Guard for AR-15 — Black
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13″ MK8 Handguard — Dark Earth
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AK 6 Inch Super Slim M-LOK Handguard — Black
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Tlr-1 HP-X USB — Black
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Tactical Augmented Dual Function Tape Switch 2.5mm — Black
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RD-1 / RD-2 Offset Mount — Black
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RD-1 / RD-2 Offset Mount — Desert
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AR-15 15.3 Inch Super Slim Free Float Handguard M-LOK — Two-tone
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6 Inch Very Low Profile Rail Guard 3-Pack — Black
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M4 Steel Handguard Cap — Black
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M-LOK Side Rail Short — Black
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ZRP-1 Charging Handle — Black
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VSR-10 Steel Bolt Cap — Silver
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AAC21 Rail Set — Black
Out of stock, also at our supplier
L-3 NGAL Illuminator / laser module Red + IR — Black
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L-3 NGAL Illuminator / laser module Red + IR — Dark Earth
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GR16 SOPMOD Tactical Stock — Black
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13″ MK8 Handguard — Black
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9.5″ MK8 Handguard — Black
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9.5″ MK8 Handguard — Dark Earth
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VX Carabine Conversion Kit — Black
Out of stock, also at our supplier
Tactical Augmented Dual Function Tape Switch 2.5mm — Dark Earth
Out of stock, also at our supplier
Minimalist Plus Folding Stock 1913 Interface — 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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