NEW HDD M249 PARA MACHINE GUN IN 5.56X45 OR 300BLK. THESE HAVE THE DUAL FEEDING OF BELT AND 30RND M16/AR15 MAGAZINE. WE HAVE UPGRADED THE MAGAZINE FEED TO HOLD THE MAGAZINE MUCH FIRMER AND NOW IS MUCH MORE RELIABLE THAN THE ORIGINAL M249 DESIGN. USA SPECIAL FORCES DROPPED THE M249 BECAUSE OF THE UNRELIABLE MAGAZINE FEED AND THE MK46 WITHOUT THE MAGWELL WAS BORN. WE OFFER BOTH GUNS BUT OUR M249 WITH DUAL FEED IS THE BEST M249 AVAILABLE. 5.56 BARREL LENGTH OF 13.5" AND 6 POSITION ADJUSTABLE STOCK. THESE ARE AVAILABLE WITH STANDARD TRIGGER FRAMES OR OUR M16 PISTOL GRIP UPGRADE TRIGGER FRAME. THE EJECTION PORT IS ENLARGED FOR BETTER EMPTY CASE EJECTION, ESPECIALLY WITH THE LARGER 300BLK CASES.