Upgrade your Stinger II with our M10 Upper. Our all-new upper comes with one 10-shot detachable magazine for seamless reloading. Swap in our low-profile nose for improved alignment with red dots and scopes. Comes with a ghost ring sight. Nearly identical in size to an AR PMAG, our M10 magazines can be easily loaded and transported in quantity with a standard PMAG pouch. Features Upgrade your existing 6-shot AR-Series crossbow with this upper featuring a detachable 10-shot magazine Improved Iron Sights 3 Picatinny Rails on removable front unit (one on top for Red-Dots or similar sights) and 2 rails on either side) as well as a storage compartment within the front unit Picatinny rail under removable front unit optimized for Red-Dots to lower line of sight The upper comes with a manual safety that works with all AR-Series Stinger II crossbows AR-style takedown pin to flip open the upper for quick limb-removal or string maintenance Specs Holds 1 M10 magazine Magazine capacity: 10 arrows per magazine Compatible with all AR-Series Stinger II crossbows Weight: 1.0 lbs (with empty magazine) Magazines fit into AR-15 PMAG pouches Contents 1 M10 receiver for interchangeable magazines 1 M10 magazine for 6.2 x 162 mm arrows 1 front unit with three Picatinny rails Assembly material