Commander, Marine Corps Systems Command, Quantico, VA 22134-5010

10 -- DESIGNATED MARKSMAN RIFLE OPTICAL SIGHT (DMROS) SOL N/A- DUE 081296 POC Contact Point: Terence J. McGinn, CTQ2TM at X (703) 784-5826. The Marine Corps Systems Command (MARCORSYSCOM) is issuing this Request for Information (RFI) to be used in developing a specification for a Commercial Off The Shelf (COTS)/Non-Developmental Item (NDI) optical scope for the Designated Marksman Rifle (DMR). In order for MARCORSYSCOM to determine if the specifications it is requesting is a COTS/NDI item, each vendor is requested to respond back specifically to each requirement set forth in section (a) through (dd) of this announcement. The device being sought under this procurement is a telescopic aiming sight designed for use with the 7.62 MM semi-automatic DMR. The Designated Marksman Rifle Optical Sight (DMROS) shall attach to the DMR to allow this rifle to be used at its maximum effective range during daylight conditions. The DMROS system shall consist of the weapon sight, ring mounts/mounting system, a cushioned light weight carrying case suitable for field operations when the DMROS is not mounted to the rifle, a rigid transport/storage case, an operator's manual, lens cleaning kit, and any mounting equipment/tools necessary to attach the sight to the named rifle. Principle characteristics: (a) reticles' optical axis shall shift less than or equal to 0.5 MOA after each knob (elevation and windage) is cycled from the 0 to the extreme adjustment and returned for ten (10) cycles. (b) the DMROS, when mounted, settled, and zeroed on the DMR shall not shift in zero and shall not exhibit damage nor degradation in performance when subjected to vibrations and recoil accelerations encountered during the prone supported shoulder firing of 100 rounds. (c) As a minimum, the DMROS, after having been mounted, settled, and zeroed to a DMR, shall be capable of being removed from and reattached to the DMR twenty times and demonstrate a ''return to zero'' precision within a maximum of 0.5 MOA allowable deviation to the original zero. It is desired that DMROS be capable of being removed and reattached to the DMR twenty times and demonstrate a return to zero precision within 0.0 MOA deviation to the original zero. (d) The DMROS shall have a minimum magnification of 6x or greater. The desired magnification for DMROS is 8x. It is desired that the DMROS incorporate a variable magnification from 2x through 8x magnification. (e) DMROS shall have a FOV of 3 degrees. A combination of a 3 degree FOV to a wider FOV is desired. (f) DMROS shall provide a minimum eye relief of 50 millimeters and shall not exceed 100 millimeters of eye relief. (g) DMROS shall provide a minimum exit pupil diameter of 5 millimeters and shall not exceed 7 millimeters. (h) DMROS shall have a 40mm objective lens diameter or greater. (i) the light Transmittance value for DMROS shall measure 92% or greater as a system. A 95% light Transmittance value for the system is desired. (j) all lens surfaces shall be coated with an anti-reflection coating. (k) DMROS, at 6x magnification, shall resolve 10.32 line pairs per milliradian (lp/mr). (l) DMROS shall be parallax free at 150 meters. It is desired that DMROS incorporate a parallax adjustment to allow individual shooters to correct for parallax at specific target ranges from a near range of 25 meters to infinity. (m) As a minimum, the DMROS shall have a scaled, cross hair reticule with four (4) one mil increment dots on each side of the intersection of cross hairs that will assist the shooter in compensating for wind, target movement, and estimation of range. If the DMROS proposed is of a variable magnification design, the reticle incorporated in the design shall proportionally increase/decrease in size with the decrease/increase in magnification to permit the user to accurately range targets using the mil dots increments throughout the sweep of variable magnification. (n) DMROS shall provide an elevation cap that calibrates the reticles' point of aim to the bullets point of impact for 7.62 mm M118 Special Ball Ammunition from a near distance of 100 meters to a far distance of 800 meters. It is desired that the DMROS elevation adjustment incorporate a cam or worm screw that calibrates the reticle's point of aim to the point of impact for M118 ammunition throughout equal increments of adjustment to the elevation cap. (o) DMROS shall provide an elevation adjustment calibrated from 1 to 800 meters in 100 meter increments. It is desired that the elevation drum be subdivided into 50 meter increments that are readily observable (sight) and detectable (tactile response) to the shooter. It is desired, that a fine tune elevation adjustment be incorporated with the master elevation adjustment in increments of 0.5 MOA that permit +/- 3 MOA adjustments to the master elevation adjustment. DMROS shall have a windage adjustment, in increments of .5 MOA, that permit 4.5 MOA windage adjustments. It is desired that DMROS provide 6 MOA windage adjustments. (p) The DMROS eyepiece shall be easily adjustable and provide at least plus 2 diopters to minus 4 diopters from the position of best focus on the reticle surface. (q) DMROS shall not exceed 14 inches in length. (r) DMROS (sight only) shall weigh equal to or less than 21 ounces (16 ounces or less is desired). (s) The DMROS mount/mounting system shall require no modification to the DMR. (t) As a minimum, DMROS shall be attachable to and removable from the DMR in the field by the operator using current issued equipment or contractor supplied tools/equipment. It is desired that DMROS be attachable to and removable from the DMR in the field by the operator using no tools or equipment. (u) the system mounting hardware necessary to attach and zero DMROS to the DMR shall weigh less than 1 pound (desired 0.5 pound or less). (v) the DMROS shall not be damaged or suffer degradation of performance when operated in temperatures up to +490 C (1200 F). (x) the DMROS shall not be damaged or suffer degradation of performance when operated in temperatures as low as -370 C (-350 F). (y) the DMROS shall exhibit neither damage nor degradation of performance from exposure to altitudes to 15,000 feet in an unprotected mode. (z) the DMROS shall not demonstrate any leakage, damage, nor exhibit any degradation in performance when subjected to a relative humidity of not less than 95 percent over a temperature range from -370 C (-350 F) to +490 C (+1200 F). (aa) the DMROS, with lens covers in place, shall not be damaged by exposure to fine sand and dust particles. (bb) the DMROS shall not leak when immersed to a minimum depth of 3 feet in fresh water for a minimum of 30 minutes, and upon retrieval shall exhibit neither damage nor any degradation in performance. (cc) the DMROS shall withstand a constant displacement of 0.125 inch double amplitude from 5 to 55 hertz (Hz) without any physical damage or degradation of optical characteristics. (dd) the DMROS in its carry case and transport/storage container containing all ancillary items, shall exhibit neither damage nor degradation in performance by being subjected to a 48 inch drop on all faces, edges, and corners of the transport/storage container. Ancillary Equipment: Lens Cover, Laser Protection, Soft Carry Case, Transport/Storage Case, Operator's Manual, Lens Cleaning Kit. Vendors interested in participating in this program shall submit in writing, technical qualifications and literature as well as comments on the proposed acquisition by close of business 12 August 1996 to: COMMANDER ATTN CTQ2TM MARCORSYSCOM 2033 BARNETT AVE SUITE 315 QUANTICO VA 22134-5010. Propriety information will be protected and should be clearly identified. No solicitation document exists at this time. THE MARINE CORPS DOES NOT INTEND TO AWARD A CONTRACT ON THE BASIS OF THIS REQUEST FOR INFORMATION OR OTHERWISE PAY FOR THE INFORMATION SOLICITED. (0192)

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