More than a tack driver. It is always fun to shoot an SA-22 because they are so darn accurate and reliable. But sometimes a scope would be handy, especially for small game and varmints. With this base you can convert yours over in just a few minutes. Mounts on the barrel and cantilevers reward to preserve the accuracy of your sight-in. Features: Browning scope bases are machined from solid steelDouble recoil shoulder design holds rings securely, even under magnum recoilAccurate and relaibleMounts on the barrel and cantilevers reward to preserve the accuracy of your sight-in