By: John Russo
When Hornady introduced the .17 HMR (Hornady Magnum Rimfire) most varmint hunters didn’t realize they needed a better round. We had been shooting .22s for so long we figured it was either that or stepping up to a centerfire such as a .223. If you’ve spent any time shooting the .17 HMR you know now there was a gap that needed to be filled. The .17 HMR gives us the ability to shoot targets and small game at distances up to 200 yards out of a rimfire rifle. When it comes to shooting prairie dogs at close to medium range, it is my favorite caliber.
Garrow Firearms Development has created the world’s first gas-operated rimfire semi-automatic AR upper. This is a true drop-in upper and is designed to work with your AR lower, regardless whether it is a carbine or a rifle. Owner/Designer Michael Garrow accomplished this through many ingenious designs. I have spent an afternoon shooting a prototype and found it to be accurate and reliable. Another cool thing about a rimfire AR upper, is it is legal in many areas that have banned ARs such as California. Of course check your local laws first.
I will be doing an extensive test of the production uppers next month and will have a full review forthcoming. Check them out at www.garrowdev.com.