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AR-15 / M4

Stocks, grips, handguards, magazines and backup sights for the AR-15, M4 and M16. In stock now: buttstocks, magazine couplers, cheek rests & risers and foregrips. Every product lists exact compatibility, so you buy once and it fits.

New: the FAB Defense Ultimate AR-15 Upgrade Kit bundles a stock, grip, foregrip, flip-up sights and three mags in one box.

Shopping for your AR15, AR-15 or AR 15? Start with the parts you touch most: the stock, the pistol grip and the handguard. Every part lists whether it fits mil-spec or commercial buffer tubes, M-LOK or Picatinny, so you can buy once.

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Exact fit listed on every product Original manufacturer gear Ships from Israel worldwide
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AR-15 / M4 Questions

Will these stocks fit my AR-15 buffer tube?

Each stock lists whether it fits mil-spec, commercial or both. Many FAB Defense stocks, like the GL-CORE family, fit both.

What's the difference between M-LOK and Picatinny?

M-LOK accessories bolt straight into slots in the handguard. Picatinny is a rail with cross slots that clamp-on accessories grip. Our M-LOK vs Picatinny guide explains which to choose.

Do these parts fit an M4 or M16?

Yes. AR-15, M4 and M16 share the same furniture interfaces, and every product lists its exact fit.