his version is identical to the the MZ251 but has the longer bench size legs. The Heavy Duty has All-Steel construction with rubber feet for prone or bench shooting and a non-quick detach mechanism which means you get one serious bipod. Based on the Model 91, which was designed specifically for the M249 SAW, the 252 is just as rugged and sturdy. Attaches to any MIL-STD-1913 rail. The legs extend from 9 inches to 12 inches.
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