Mossberg 151K Sporter .22 LR Semi-Automatic Rifle | 1950–1951 Production, 24" Barrel, 15+1 Capacity
Produced for only two years, the Mossberg 151K Sporter stands out as a scarce post-war rimfire that blends target-grade accuracy with sporting features. Its internal 15-round tubular magazine, Monte Carlo stock, and factory-stored brass cleaning rod make this variant particularly attractive to collectors seeking an original, period-correct example.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling – Intact, well-defined lands and grooves.
Specific Condition Notes: Minor scratching, scuffing, scattered pitting, and finish blemishes are present on both metal and wood surfaces.
What’s Included
- Factory brass cleaning rod stored in buttstock (OEM Mossberg)
The 151K is part of Mossberg’s 151 series but differs through its Monte Carlo sporter stock and right-hand cheek piece, offering improved eye alignment behind the open sights. Manufactured in 1950–1951 only, this limited run adds collectibility to an already desirable rimfire platform.
A 24" carbon-steel barrel, paired with a blued finish, delivers classic lines and solid corrosion resistance. The blowback semi-automatic action feeds from a 15-round tubular magazine concealed in the buttstock, keeping the forend slim and well-balanced.
The hardwood stock features a palm-swell pistol grip for steady handling, a trapdoor buttplate that secures the included brass cleaning rod, and factory sling-swivel bases ready for field carry. Length of pull measures 13.75", accommodating most adult shooters comfortably.
Sighting is handled by a dovetail bead/blade front and an elevator-style open rear sight, while a manual safety offers simple, reliable control. Together, these factory details preserve the rifle’s period-correct configuration and enhance its appeal to shooters and collectors alike.