Saw someone post their Lego AR57 (FSS Hurricane) So here's my MW19 and MW22 m4s. Working Bolt and mag release and are part of a modular M4 receiver I designed allowing for
Lego M4 | Lego, Mini figures, Novelty lamp
Lego m4(includes rubber band shooting feature, blowback and the bolt locks back after the last round and adjustable stock) : r/legoguns