Mossberg introduced the LBA (Lightening Bolt Action) adjustable trigger on its rifles in 2009. For 2010, Mossberg brought the same style trigger to the 590A1 Special Purpose shotgun with the LPA (Lightening Pump Action) trigger.
Mossberg states the LPA trigger is user adjustable for 3-7 pounds, and is “creep-free.” The LPA trigger features the same skeletonized lightening bolt blade that rests in the center of the trigger face.
The new 590A1 has a 12 gauge, 3″ chamber, with a fluted 18.5″ barrel, Parkerized finish and a Speefeed stock. It has an overall length of 39.5″ and a weight (unloaded) of 7.25 pounds.
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