The HK HK416 Rifle 22 Long Rifle 16.1" Threaded Barrel has the look and feel of the legendary HK416 used by the world's most elite fighting forces in a semi-automatic .22 LR rifle. HK partnered with Umarex of Germany to bring you the best, most realistic HK branded rimfire rifles available. Whether you use it as sub-caliber trainer, for hunting or competition, make sure you get the only HK416 .22 LR rifle authorized by HK.Features:Aluminum receiversRIS-Rail Interface System M-LOK/Mil STD. 1913Retractable stockPistol Grip with storage compartmentAdjustable flip up sights90Adeg manual safetyFunctional dust coverLast round bolt hold openThreaded muzzle 1/2 x 28