Instant improvement
Excellent product, instant improvement over factory springs and struts. Work great in Blackhawk including small frame “flattop” models as well as both original and “New” Vaqueros (without internal lock).
Grea.t part
Really smooths up the hammer stroke on single action. Takes all the gritty feeling out of the hammer. Just wish they made one for the Security Six double action, too!
Works great! Drop In Part
This part works great. I have a limited edition "Flat Top" Bisley .44 special. The stock mainspring was way to heavy resulting in a significant effort to work the hammer back along with heavy hammer fall that tends to jar the sight alignment on impact to the firing pin. This drop in part works as advertised---easy to install and makes a big difference in level of effort to work the hammer and smoothness of the hammer fall. I've had no issues with "light strikes" I handload all my ammo with Federal primers. Combine this part with a Wolff 30 ounce trigger return spring and you'll have a decent trigger. Buyer beware--this part may not work on the limited edition XR-3 frames with the modular trigger lock inside the grip frame.
Should be factory standard!
Bought this to replace the Ruger factory part that was a joke. The head of the strut was poorly ground and had flat facets on it. I made an attempt to smooth it, and it did help some, it was still somewhat "gritty" feeling when cocking. I also didn't care for the wear patterns of the flat shank that the spring rode upon. This Brownell's part having a smooth consistent finish over the entire part has made a world of difference in and of itself. The head is smooth and well polished which aids in smooth, consistent cocking. The body being well rounded has no edges or corners to snag the spring improving the overal general feel of the revolver. My trigger pull has gone from a gritty 5 lbs to a crisp, clean 3.5 lbs. Cocking the revolver is smooth and easy though for my tastes the 17lb spring is a bit light. I replaced it with a 19lb Power Custom spring. I have been tempted to try out the factory spring to see how smooth it feels.
Easiest upgrade for New Model Blackhawks
Being a captured spring, removal of the old and installation of the new is easy. A tiny drop of oil on the round end where it meets the hammer helps. Still plenty of spring power compared to the stock 24 pound spring to reliably ignite the hard primers of .45ACP GI rounds. This will also take off about 2 pounds of trigger pull due to reduced pressure on the sear surfaces.
