Available handguards in the market:
MadBull Short Patriot hand guard (click)
Patriot rail handguard
(1) ~1cm length adjustable. Fit to most of M4 AEG in the market.
(2) "2" screws to lock the adjustable parts.
(3) Light Aluminum, one piece reinforce barrel. NC processed.
(4) Best price and quality in the market
MSRP: $32 USD