The Windham Weaponry Multi-Caliber System will allow you to fire many different calibers from an AR-15 rifle platform.
This Windam Weaponry Multi-Caliber System allows you to quickly make a few modular changes on its AR-15 rifle and shoot ammunition from 9mm, 5.56mm, and up to 7.62x39mm AK ammunition.
This may well be a game changer and allows the AR-15 rifle fan a number of options in one purchase.
With a few quick adjustments, you have one AR-15 rifle that will allow you to shoot different calibers. And as long as you are not going for Minute-of-Angle accuracy at long ranges past 100 yards, you should be able to keep the same iron sights or optics on the upper and maintain your zero for more close-quarter shooting.
If you are an avid range user you will also see significant savings in being able to use less expensive ammunition, such as 9mm, while still training on the same AR-15 rifle.
The Windham Weaponry Multi-Caliber System is definitely worth checking out as a new ground-breaking AR-15 inspired rifle.