Complex sentence: Likewise the 1877 "Lightning" in.41 caliber was the preferred weapon of Billy the Kid and was his weapon of choice when he was killed by Pat Garrett in 1881.
Split into simpler sentences: Likewise the 1877, specifically the "Lightning" in.41 caliber was the preferred weapon of Billy the Kid. Although not the best endorsement for the pistol, Billy was armed with a "Lightning" when killed by Pat Garrett in 1881.