5500.00 *Like New* Bushmaster ACR in .450 Bushmaster w/ ACR Folding Stock (Non-Restricted) Semi-Auto Rifle Markham / York Region Oct 30, 2024 - 12:36 PM KAMI99 For sale is a rare, like new, Bushmaster ACR in .450 Bushmaster caliber. It is a non-restricted semi-automatic rifle. It has the famous ACR folding stock (adjustable for legth & height).