FAB Defense AR-15 Upgrade Kit Features The FAB Defense AR-15 Upgrade Kit takes rifles to the next level meeting the tough standards demanded by military special units. Built from durable polymer the kit is compatible with the 5.56x45mm NATO chambering common to M16 M4 and AR15 platform rifles. Its compact 2.04 length and 1.25 width keep the kit s footprint minimal so it upgrades the rifle s ergonomics without adding unnecessary bulk or weight. At just 0.6 lbs the kit is light enough to install without noticeably shifting the rifle s balance. Compatibility with M-LOK compatible handguards means this kit integrates cleanly into a modern modular rifle build working alongside other M-LOK accessories the shooter may already run. Whether the rifle is used for sport shooting hunting or tactical applications this kit is designed to deliver the precision control and reliability needed to perform at a higher level. The black polymer finish keeps the components low-profile and durable against everyday wear. For AR-15 owners looking to round out their rifle s furniture with a purpose-built military-standard kit the FAB Defense AR-15 Upgrade Kit is a solid option. Fab Defense AR-15 Upgrade Kit Specifications Manufacturer: FAB Defense Model: AR-15 Upgrade Kit Type: Stock Kit Caliber: 5.56x45mm NATO Material: Polymer Compatible Hosts: M16 M4 AR15 Platforms M-LOK Compatible Handguard Length: 2.04 Width: 1.25 Weight: 0.60 lbs Color: Black Available At: GrabAGun