Sounds like SOCOM is looking at a rifle to extend their effective range to 2500 yds. Interesting set of requirements. Makes sense why Barrett just announced the new 416 MRAD.
The ELR-SR shall be a modular, magazine-fed, multi-caliber capable system which will include barrel configurations with required bolts and barrels of each caliber, required magazines of each caliber, stock, receiver, sound suppressor, ballistic computer, operator manual, cleaning kit, tool kit, bipod, and Transportation Safety Administration (TSA) approved locking hard carrying case.
The primary caliber of the system shall be sub-sonic and supersonic capable. If the primary system caliber is not a current DOD-approved munition, system it shall be capable of transitioning to a current .300 Norma Magnum DOD-approved munition with a quick- change kit (T). The quick-change kit shall be able to switch calibers within 5 minutes.
The ELR-SR shall have an overall length of no more than 56 inches, no more than 50 inches, less suppressor and the length of pull set to 14.5 inches.
The ELR-SR shall weigh no more than 22 lbs. with barrel, empty magazine, no more than 18 lbs.
Shall have continuous timed and biased MIL-STD-1913 rails, with numbered slots, at the 12 o’clock position with a minimum length of 24 inches and a 10 (+/- 1) MIL forward-sloping cant from back to front.
Shall provide M-LOK® attachment points at the 3, 6 and 9 o’clock positions with ARCA lock rail with attachment at the 6 o’clock position.
The ELR-SR shall be manual (bolt action gun) in operation.
The ELR-SR, with muzzle device attached, will have a peak free recoil impulse of no more than 25 ft-lbs. The objective is to minimize the effects of recoil on a shooter as much as possible.
The ELR-SR barrel shall be capable of removal and replacement at the operator level Modular changes, including barrel changes, shall be accomplished within 5 minutes and with common tools, in such a way as to meet headspace requirements for each caliber.
The ELR-SR system shall have a single, precision fire, high decibel reduction sound suppressor that will reduce audible signatures for all calibers to no more than 140dB. The sound suppressor should add no more than 8.5 inches in length to the system and should have recoil reducing capabilities. Sound suppressor shall be removable without specialty tools.