✓ PREMIUM MATERIALS - The RONIN FACTORY brand of Antennas are always made with the best, highest quality materials. These SmartLock antennas are made with Military grade aluminum, coated with UV & scratch -resistant black anodize and come with stainless steel adapters. No need to worry about any pieces rusting. ✓ CARWASH SAFE - Just like the original TuffLock GMC & Chevy Bullet Antennas, the SmartLock Bullet Antenna has a durable & strong design which means that you won't need to worry about your antenna breaking off in automatic carwashes. ✓ RADIO SIGNAL - As with all short Antennas, radio signal performance will be more sensitive when you shorten the length of the antenna. This Antenna will not affect Bluetooth or Satellite radio. Please don't expect to get as many radio stations as your factory long whip antenna mast with this 50 cal. bullet style antenna. ✓ FITMENT - This 50 cal bullet antenna fits all model years of full-size GMC & Chevy Trucks, making it perfect for chevrolet silverado accessories. This truck antenna DOES NOT FIT: roof-mounted applications such as the mid-size trucks, Chevy Colorado, GMC Canyon, Avalanche, Hummer. ✓ IMPROVED INSTALLATION & REMOVAL - 1. Unscrew original antenna. 2.Thread on the 1-pc adapter and snug with the Allen key (included). 3. Slide Antenna over the adapter. 4. Snug the set-screw in place with the Allen key (included). That is all! The antenna comes with a newly designed 1-pc adapter that has both M7 & M6 threads so that it is compatible will all model years of fullisize Chevy & GMC pickup trucks. This includes Chevy Silverados, GMC Sierra, 1500, 2500HD, etc. ✓ IMPROVED LOGO ORIENTATION - Based on feedback from our TuffLock Chevy Chevy & GMC Bullet antennas, one painpoint was that when screwed-on, the antenna logo was facing an undesirable direction. We fixed this by designing the SmartLock antenna to be 360 degrees adjustable in 45 degree increments, so you can set the logo exactly where you want it. The Antenna will "click" into place giving you a firm & high-quality feeling. ✓ IMPROVED ANTI-THEFT DESIGN - Rather than relying on thread-compound to hold your Chevy short antenna in, the new Chevy SmartLock Antenna uses a locking mechanism that requires a small Allen key (included) to remove the antenna. This way, theives cannot simply remove your new Antenna but it allows you to remove it easily without any hassle. ✓ NEW 2024 DESIGN - This SmartLock Chevy Silverado & GMC Sierra Bullet Antenna is a brand new design developed from years of customer feedback of our best-selling original TuffLock Chevy Bullet Antenna truck accessories. The SmartLock design is a no-brainer Chevy Silverado accessory & GMC Truck Accessory that will set your truck apart from the rest.