This bundle includes a compact Crimson Trace red dot rifle sight. It features a 4.0 MOA round aiming dot the CTS-106 will elevate your rifle's performance potential instantly. Installed in seconds by utilizing an included riser for rail mounting the red dot attaches effortlessly to Picatinny rail sections. It is user adjustable for windage and elevation. The battery life is greater than 50 hours. It has side accessible battery access and it is constructed with a 6061-series aluminum body.Features: Free-Floating Handguard- Able to mount a multitude of aftermarket accessories Mid-Length Gas System- Users can expect less felt recoil when shooting 1:8" Twist 5R Rifled Barrel- 5R rifling profile has consistent contact with the projectile ensuring a more accurate rifle. The 1:8" twist rate allows for more variety of ammo to be used. Model: M&P15 SPORT III - 10rd Compliant Receiver: 7075-T6 Aluminum Action: Gas operated Semi-auto Rifling: 1:8" Twist 5R rifling Top Rail: Picatinny-style full-length Handguard: Free-floating 15" M-LOK Width: 2.5"(6.4 cm) Overall Height: 8"(20.3 cm) Overall Length: 35" (89 cm) Extended 32" (81 cm) Collapsed Muzzle Device: A2 Flash Surpressor Charging Handle: Std. M&P15 Grip: Polymer Rifle Weight: 6.5 lbs. (2948.4 g) Stock: 6-position Adjustable Barrel: 16" (40.6 cm) w/A2 Compensator Barrel Material: 4140 Steel w/Armornite finish Other: Bolt forward assist & dust cover