Pirate Arms
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In stock at our supplier, delivery in 5–10 working days
MP5 RAS Handguard
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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.
73–96 of 1619 products
Maple Leaf
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In stock at our supplier, delivery in 5–10 working days
VSR-10 Twisted Hollow Bolt Handle Knob for Left Hand
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Silverback
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In stock at our supplier, delivery in 5–10 working days
Twisted Bolt Knob
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KRYTAC
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In stock at our supplier, delivery in 5–10 working days
Trident M4 Buffer Tube Assembly
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Skilhunt
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In stock at our supplier, delivery in 5–10 working days
Defier X1 / X2 Red Filter
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Classic Army
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In stock at our supplier, delivery in 5–10 working days
M133 Front Handle With Rail Sets
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Midwest Industries
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
AR15 10.5 Inch Combat Handguard M-LOK
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Maple Leaf
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
Non Function Magwell of Backup Mag Carrier
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KRYTAC
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In stock at our supplier, delivery in 5–10 working days
Kriss Vector Folding Stock Latch Replacement Kit
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Pirate Arms
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In stock at our supplier, delivery in 5–10 working days
AK Charging Handle
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Big Dragon
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In stock at our supplier, delivery in 5–10 working days
Laser Module for M9 Models
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Silverback
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In stock at our supplier, delivery in 5–10 working days
TAC 41 Polymer Screw Set
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KRYTAC
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In stock at our supplier, delivery in 5–10 working days
Kriss Vector Magazine Release
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Laylax
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In stock at our supplier, delivery in 5–10 working days
Barrel Supporter for SIG Sauer MCX
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G&G
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In stock at our supplier, delivery in 5–10 working days
Barrel Cover
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Lasermax
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In stock at our supplier, delivery in 5–10 working days
SPS-C-R Laser/Light Combo Red
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LCT
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In stock at our supplier, delivery in 5–10 working days
X47 Fire Selector
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Pirate Arms
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In stock at our supplier, delivery in 5–10 working days
AKSU RIS Handguard
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Maple Leaf
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
VSR-10 Bolt Handle Base for Right Hand
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Pirate Arms
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In stock at our supplier, delivery in 5–10 working days
MP5K M-LOK Handguard
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Ergo
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In stock at our supplier, delivery in 5–10 working days
Bipod Mount - M-LOK
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KRYTAC
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In stock at our supplier, delivery in 5–10 working days
Kriss Vector Body Pin Set
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KRYTAC
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
Kriss Vector Ejection Port Assembly
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Midwest Industries
In stock at our supplier, delivery in 5–10 working days
In stock at our supplier, delivery in 5–10 working days
AR15 15 Inch Combat Handguard M-LOK
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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.