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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.

289–312 of 1791 products

LCT AK / LCK Magwell Steel Spacer
LCT
In stock at our supplier, delivery in 5–10 working days

In stock at our supplier, delivery in 5–10 working days

AK / LCK Magwell Steel Spacer
Price to follow
FMA QD Sling Swivel - Black
FMA
In stock at our supplier, delivery in 5–10 working days

In stock at our supplier, delivery in 5–10 working days

QD Sling Swivel - Black
Price to follow
Troy CBIR M4 stock - TAN
China
In stock at our supplier, delivery in 5–10 working days

In stock at our supplier, delivery in 5–10 working days

Troy CBIR M4 stock - TAN
Price to follow
LCT PSO-1 Scope Mount Extender
LCT
In stock at our supplier, delivery in 5–10 working days

In stock at our supplier, delivery in 5–10 working days

PSO-1 Scope Mount Extender
Price to follow

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.

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