2007 RTC ASSAULT RIFLE EVALUATION
UNITED STATES SECRET SERVICE
JAMES J. ROWLEY TRAINING CENTER
STATEMENT OF WORK
1. The weapon must be commercially available and in serial production. All weapons procured under this solicitation shall be of new manufacture. Rebuilt, overhauled, remanufactured, or “seconds” shall not be accepted.
2. After the selection process is complete, the awardee will be required to notify the Contracting Officer’s Technical Representative and the Contracting Officer at least sixty (60) days in advance of any changes in material, make up, or specifications of the weapon prior to shipping. The purchaser may require a sample with the changes incorporated for examination, evaluation and approval prior to shipping.
3. The weapon must be operable, without modification or alteration, by a right or left-handed user, firing with the right or left hand, depending on [b]handedness.[b]Is that a real word?
4. All metal parts of the weapon shall have a dark subdued, rust/corrosion resistant finish. The finish shall be unaffected by commercially available gun cleaning solvents, such as Simple Green, used in heated ultrasonic cleaning tanks.
5. All metal components and finishes shall be capable of withstanding cleaning using commercially available cleaning solutions, such as Simple Green all-purpose cleaner/degreaser, designed to be used in heated ultra sonic cleaners. Flaking, peeling, blotching, etc. of the finish is unacceptable.
6. The weapon shall be 5.56 x 45mm caliber (US Mil. Spec.) and function with assorted ammunition to include - M855, frangible and training ammunition. Chamber dimensions shall conform to current U.S. Military specifications for 5.56 x 45mm.
7. The weapon shall come equipped with a flash suppressor.
8. [b]The weapon shall utilize a gas operated short stroke piston system.
9. The weapon shall be selective fire, i.e. semi-automatic and full automatic. A “burst limiter” in the full-automatic mode is not acceptable.
10. The fire control selector shall have three positions; safe, semi-automatic and automatic and shall rotate manually without binding from one position to another when the hammer is cocked. The selector shall remain in place in each position by a perceptible spring detent load until manually reset. Additionally,
a. With the hammer cocked, when the selector is placed in the “SAFE” position, it shall prevent the trigger from releasing the hammer so that the weapon is incapable of being fired.
b. When the selector is placed in the “SEMI AUTOMATIC” position, it shall permit the disconnect to engage the hammer, so that the weapon is capable of semi-automatic fire only (one shot with each pull of the trigger).
c. When the disconnect has engaged the hammer and the trigger is released, the disconnect shall release the hammer without the hammer falling.
d. When the selector is placed in the “AUTO” position, it shall permit the automatic sear to engage the hammer, so that the weapon is capable of automatic firing (continuous firing until the trigger is released or all cartridges are expended).
5. The fire control selector shall be ambidextrous and must be capable of being operated with the thumb of the shooting hand without removing the shooter’s hand from the rear pistol grip.
6. The fire control selector must be a rotary type and shall move from “SAFE” to “SEMI” to “AUTO” in an arc of approximately 180 degrees.
7. The charging handle shall be situated in the upper receiver. The charging handle shall not reciprocate with the bolt when the weapon is fired.
8. The rifle must be equipped with a magazine activated bolt hold open device. The bolt hold open device shall also be capable of being activated manually by the operator. When the bolt hold open device is activated by the magazine follower and the magazine is subsequently removed, the bolt must remain in the rear or open position. When the bolt catch is released, the bolt shall return to the battery position. When the bolt is in the rear or open position and a full magazine is inserted, the bolt must remain in the rear or open position until the operator manually activates the bolt release. Upon activation, the bolt must strip a round from the loaded magazine and load it into the chamber.
9. The magazine release shall securely retain the magazine in the magazine well. The magazine (whether empty or full) shall fall free from the magazine well once the magazine release button is activated without any further operator assistance. The magazine release button must be spring loaded and the design of the receiver should provide some shielding against inadvertent activation. [b]The activation of the magazine release button should be accomplished with minimum effort by the operator – one hand only - yet should also not be easily accidentally activated.
10. The magazine should be capable of being inserted into the magazine well by the operator with one hand. The magazine must be capable of being inserted directly into the magazine well without any “rocking” type motion.
11. All parts with the exception of the barrel and the receiver shall have a service life of 10,000 rounds.
12. The barrel shall have a minimum service life of 20,000 rounds.
13. The receiver shall be warranted for the life of the weapon.
14. The weapon will be subjected to a 20,000 round reliability and endurance test. Results of this test will be recorded for the final evaluation. Additionally, three (3) weapons will be shot to failure (STF). Information obtained from STF will help establish future preventative maintenance protocols only and will have no impact on the selection process.
15. When received, and at a 10,000 round and 20,000 round interval, the weapon shall fire a five (5) shot group at 100 yards with a maximum extreme spread no greater than five inches using the NATO M855 ammunition. The weapon will be fired with a 10 power scope utilizing a sand bag rest.
16. The weapons must conform to the following dimensional requirements:
a. Height (no longer than, w/o accessories) ……..8 inches
b. Weight (no heavier than, w/o accessories) ………...8 lbs.
c. Overall length with stock extended……………..….35 inches
d. Barrel length ….………………………..…………..………14.5 inches
e. Rifling (5.56)…….……………………..1 turn in 7 inch twist RH
f. Full automatic rate of fire………………..………….600-800 rpm
17. The weapon must be capable of accepting the standard NATO STANAG 30 round M16 series magazine. The magazine body itself must be made of aluminum. Magazines must contain an anti-tilting follower and the follower must be able to activate the weapon’s bolt hold open device after the last round is fired.
18. [b]The weapon must be equipped with a Mil-Std-1913 Picatinney attachment rail on the top of the receiver for mounting of optics, iron sights, lasers, etc.
19. [b]The weapon shall have a modular free-floating handguard assembly with Mil-Std-1913 Picatinney attachment rails capable of mounting various accessories in the 12:00, 3:00, 6:00, and 9:00 o’clock positions simultaneously. When assembled to the weapon, the upper most rail of the free-floating handguard assembly must align and be at the same height as the rail on the receiver. A one piece receiver/handguard assembly is acceptable as long as the barrel is free-floating and the above rail positions are present.
20. The trigger shall hold the hammer in the cocked position until the trigger is pulled. After partial or complete trigger pull, the trigger shall return to its normal forward positions (cocked and uncocked) under spring action.
21. The trigger pull shall not measure more than 6 pounds or less than 4.5 pounds, regardless if the fire selector is set on semi or full-automatic fire.
22. The trigger shall be a two-stage match-type trigger.
23. The trigger cannot be wider than the trigger guard.
24. The trigger shall have a smooth face.
25. The trigger shall be the only control inside the area enclosed by the trigger guard. Any other controls (bolt catch/release, magazine /catch release, etc.) inside the area enclosed by the trigger guard is unacceptable.
26. The trigger shall be free of perceptible creep.
27. The trigger shall be free of perceptible over-travel (backlash).
28. The trigger shall not pinch the trigger finger between the trigger and the side of the receiver or between the trigger and the inside bottom of the trigger guard.
29. While utilizing gloves, the trigger shall not pinch the trigger finger between the trigger and the side of the receiver or between the trigger and the inside bottom of the trigger guard. Aviator NOMEX Fire Resistant Flight Glove – NSN: 8415-01-504-3063 will be utilized for this test.
30. The rear pistol grip shall be securely attached to the lower portion of the receiver and shall not interfere with the operation of the selector lever.
31. If available, vendor shall provide interchangeable rear pistol grip adapters (backstraps).
32. The weapon will have an integral waterproof storage compartment suitable for three (3) batteries. Batteries include: two (2) 3V Lithium Type CR2032 batteries and one (1) 3V DL1/3N (Aimpoint) battery.
33. The weapon shall be equipped with a removable forward vertical pistol grip that shall be user adjustable (without the use of tools) along the length of the lower Picatinney rail.
34. The butt stock shall be quickly adjustable for length of pull without the use of any tools. The butt stock shall have at least 4 intermediate settings between fully extended and fully collapsed for a total of 6 positions.
35. Each weapon shall be supplied with means to mount a sling to either side of the buttstock, the receiver plate, and the Picatinney rail on the handguard.
36. The barrel shall be free of cracks, seams, and other injurious defects and the bore and chamber shall be free of pockets, rings, bulges, and other deformations. The bore and chamber shall be chromium plated. The chromium plating in the chamber and bore shall be free of nodules, flaking, pits, stripping, anode burns and evidence of etched base steel. Burrs and sharp edges shall be removed from the chamber edges, and bolt locking lugs.
37. The weapon shall be designed with a firing pin (safety) lock to prevent firing unless the trigger is pulled. The firing pin lock will minimize potential unintentional discharges from dropping or slam firing. Slam firing is defined as the unintentional discharge that can occur when the firing pin strikes the primer of the cartridge with sufficient force to cause firing during the chambering and locking portion of the cycle of operation without pulling the trigger.
38. The front sight shall be a square post type adjustable for elevation. The front sight shall be located at the front of the weapon either on top of the gas block or at the end of the rail on the hand guard. The thickness of the sighting portion of the post shall be from .050 to .075 inches. The front sight shall be a folding type. The sight shall be capable of being locked in either the down or up position. At no time shall the sight unlock from its position as a result of firing the weapon. The front sight post shall be capable of being adjusted for height as part of operator zeroing procedures.
39. The rear sight shall be an aperture type with a folding locking detent. The sight shall be capable of being adjusted for windage and elevation. The sight should be readily adjustable for ranges between 200 and 600 meters. The rear sight must be capable of being locked in either the up or down position. At no time shall the sight unlock from its position as a result of firing the weapon. The rear sight can either contain one ring or two.
40. When utilized, the iron sights must be viewable through the lower third portion of an Aimpoint Comp M2 and/or M3 sight while mounted in a KAC Reflex Sight Mount on the top rail of the upper receiver. (KAC Reflex Mount part # 98073-1)
41. The back-up iron sights must be regulated for NATO M855 ammunition with a range of adjustment sufficient to accommodate the trajectory of the M855.
42. The weapon shall not fire and the magazine shall remain locked in the magazine well when dropped from a height of three (3) feet onto a concrete slab so as to land on its muzzle. The weapon must be capable of being dropped a total of nine (9) times in the following manner: three times with the fire selector on “SAFE,” three times with the fire selector on “SEMI-AUTOMATIC,” and three times with the fire selector on “FULL-AUTOMATIC.” A new primed cartridge case (no propellant or projectile) shall be used for each drop. A magazine of 30 rounds shall be loaded into the magazine well. The weapon shall fail if either the weapon fires or the magazine dislodges.
43. The weapon shall not fire and the magazine shall remain locked in the magazine well when dropped from a height of three (3) feet onto a concrete slab so as to land on its butt, with stock extended. The weapon shall be dropped a total of nine (9) times in the following manner: three times with the fire selector on “SAFE,” three times with the fire selector on “SEMI-AUTOMATIC,” and three times with the fire selector on “FULL-AUTOMATIC.” A new primed cartridge case (no propellant or projectile) shall be used for each drop. A magazine of 30 rounds shall be inserted into the magazine well. The weapon shall fail if either the weapon fires or the magazine dislodges. The stock may collapse, but may not be damaged to the detriment of the operation of the stock such as binding, or failing to lock in set position. The weapon shall fail if the butt stock becomes inoperable as a result of this test.
44. The weapon shall be capable of being thrown from a height of approximately three (3) feet over a distance of approximately fifteen (15) feet onto a concrete slab. The fire selector shall be placed on “SAFE,” with the chamber loaded with a new primed cartridge case (no propellant or projectile). A magazine of 30 rounds shall be inserted into the magazine well for each throw. The weapon shall be thrown a total of six times; three times landing on the left side, and three times landing on the right side. A new primed cartridge case shall be used for each throw. The weapon shall fail if it fires or becomes unsafe to fire on any throw. There shall be no penalty should the magazine become dislodged and is released from the weapon on impact provided it is still functional. Following successful completion of the throw test, the weapon shall be function fired using the magazine from the throw test. No weapon or magazine related malfunction is acceptable.
NOTE: All drop and throw tests will be conducted with the following accouchements attached to the weapon – ATPIAL Laser, M3X Tactical flashlight, and Aimpoint Comp M2/M3 electronic sight.
45. Each weapon shall be shipped with a cleaning kit equipped with the necessary components in a convenient carrying pouch to carry out recommended cleaning at the operator level. (i.e. NSN 1005-01-541-7228 (Cleaning kit, Rifle)
46. Each weapon shall be shipped with twelve (12) 30 round magazines as specified in item#22.
47. Each weapon shall be shipped with one operator’s manual, written in English. Information in the manual shall include, but not be limited to, description of the weapon, nomenclature, cycle of operation, field stripping, cleaning and maintenance, inspecting at the operator’s level, lubricating, troubleshooting, and safety.
48. Training – The manufacturer of the weapon shall provide armorer training (at manufacturer’s facility) for a minimum of five (5) armorers as ordered by the Government. The training shall include, but not limited to, complete and detailed assembly and disassembly of the weapon, diagnosis and resolution of malfunctions, fitting of parts, training in the functioning and engineering of the design, symptoms of impending malfunctions, necessary tools and their proper use, and necessary dimensions and tolerances. Training shall take place no later than 30 days prior to the first delivery of rifles.
49. The manufacturer shall prepare and supply an inventory of suggested spare parts based on the initial first year’s purchase of rifles. In addition, the manufacturer shall supply all the spare parts necessary to perform preventive maintenance to 20,000 rounds (per weapon). This shall also apply to all rifles purchased in option years.
50. [b]The manufacturer shall supply all special tools, in sets of four, required to service the weapon. This includes but may not be limited to gauges, jigs, barrel wrenches, vice jaws, factory headspace gauges, etc. Additionally, manufacturer shall include detailed chamber drawings and Rockwell Hardness specifications.
51. All tools and spare parts shall be delivered to the USSS/RTC Armory no later than 30 days prior to the first delivery of rifles.
52. Documentation – The contractor shall provide documentation, written in English, regarding factory recommended maintenance procedures for the expected service life of the weapons (at both the operator and armorer level). This documentation shall be provided in the form of a well-organized presentation document specifically addressing the weapons being delivered under this contract.
53. The manufacture shall suggest a minimum of four commercial manufacturers of ammunition that has a suitable copper jacketed leaded round (no steel core) that mimics the trajectory of the M855 round to at least 100 yards and functions with the same reliability as the M855 round. This includes the specific catalog or order number of the cartridge.
54. The manufacturer shall suggest a minimum of four commercial manufacturers of frangible ammunition that will function the rifles with the same reliability as the M855 round. This includes the specific catalog or order number of the cartridge.
55. Serial numbers provided for the weapons purchased by the U.S. Secret Service shall not be released without prior written approval of the Contracting Officer and the Contracting Officer’s Technical Representative (COTR).