Steve Smith
Moderator Emeritus
The 2004 CMP Competitions rulebook is out on their website. The most significant rifle rule change is the clarification of which M16 variants are considered service rifles.
From the rule book:
6.2.3 U.S. Rifle, Caliber 5.56mm, M16
The rifle must be an M16A2 or M16A4 rifle that was issued by the U.S. Armed Forces or a commercial rifle of the same type and caliber. M16 rifles must be chambered for the 5.56mm cartridge and comply with the following specific requirements:
(1) Modification to make automatic fire impossible without removing, replacing or altering parts is allowed.
(2) Magazines of the standard service 20 or 30 round box magazine dimensions must be attached during the firing of all courses and in all positions. A dummy magazine with a ramp for single shot loading may be used, provided this magazine has the same external configuration and dimensions as the standard service 20 round magazine. Dimensions for M14 and commercial equivalent rifles
Ref. Maximum allowable dimensions
(1) Depth immediately behind stock ferrule 3 ¼â€
(2) Depth at front end of trigger housing bedding pads 4â€
(3) Depth at front toe of pistol grip 6 1/8â€
(4) Depth at toe of stock 8"
(5) Distance from rear of magazine (inserted and locked) across top of
magazine release to toe of pistol grip
Not less than
6 1/4"
(6) Width at front end of trigger housing bedding pads 2 ½â€
(7) Total length from tip of suppressor to butt plate 45"
(8) Stock width immediately behind stock ferrule 2"
(9) Stock width at rear of stock 2 1/2"
(10) Stock width at front and rear of the receiver 2 1/2"
(11) Stock depth immediately behind front stock ferrule 1 3/4"
(12) Stock depth where tips of trigger housing bedding pads rest 2"
(13) Stock depth from toe of pistol grip to comb of stock 4 1/2"
(14) Stock depth at butt plate 5 1/2"
(15) Total length from stock ferrule 33 1/2" with
butt plate,
min. 32 1/2")
(3) The rear sight aperture may have a hood no longer than 0.70". The rear sight aperture may have a fixed, non-adjustable aperture insert. A corrective lens may be inserted in the rear sight hood.
(4) Rear sight windage and elevation adjustments may be modified to allow finer adjustments. The front sight blade may be fixed or lockable.
(5) To stabilize the rear sight assembly, it may be fitted with one or more pins extending down into the receiver or with stabilizing projections extending forward no more than 5/16†into the top groove of the carrying handle.
(6) The flash suppressor and bayonet lug may be removed (or the rifle manufactured without a flash suppressor or bayonet lug) to comply with current law. Barrel length must not exceed 20 inches. If the rifle was manufactured without a flash suppressor, the barrel may not be threaded to take one.
(7) A screw may be inserted in the back radius of the pistol grip where it joins the lower receiver. This screw may extend into the rear lock-down lug of the upper receiver for the purpose of securing the upper and lower receivers. The screw head will not protrude above the original surface of the receiver. Both ends of the original takedown pin must remain in place so that the original outside configuration is not changed.
(8) Upper receivers may not be changed during the firing of any match.
(9) An external device may be attached to prevent selector lever movement to the auto position.
(10) The front sling swivel may be attached to the front ferrule of the handguard orfront tip of the “tube†(in the case of a floating barrel system) as long as it remains in the 6 o’clock position and is no more than ½ inch from the original position.
(11) The M16A1 Carbine butt stock or the commercial equivalent may be installed on an M16A2 or M16A4 rifle.
http://www.odcmp.com/Competitions/Rulebook.pdf pages 22 and 23.
This NRA rule:
3.1.3 Service Rifle- Any rifle or modified rifle not covered by NRA Rules 3.1, 3.1.1, or 3.1.2, but permitted by CMP rules are considered service rifles in NRA sanctioned competition.
makes the M16A4 a legal NRA service rifle.
From the rule book:
6.2.3 U.S. Rifle, Caliber 5.56mm, M16
The rifle must be an M16A2 or M16A4 rifle that was issued by the U.S. Armed Forces or a commercial rifle of the same type and caliber. M16 rifles must be chambered for the 5.56mm cartridge and comply with the following specific requirements:
(1) Modification to make automatic fire impossible without removing, replacing or altering parts is allowed.
(2) Magazines of the standard service 20 or 30 round box magazine dimensions must be attached during the firing of all courses and in all positions. A dummy magazine with a ramp for single shot loading may be used, provided this magazine has the same external configuration and dimensions as the standard service 20 round magazine. Dimensions for M14 and commercial equivalent rifles
Ref. Maximum allowable dimensions
(1) Depth immediately behind stock ferrule 3 ¼â€
(2) Depth at front end of trigger housing bedding pads 4â€
(3) Depth at front toe of pistol grip 6 1/8â€
(4) Depth at toe of stock 8"
(5) Distance from rear of magazine (inserted and locked) across top of
magazine release to toe of pistol grip
Not less than
6 1/4"
(6) Width at front end of trigger housing bedding pads 2 ½â€
(7) Total length from tip of suppressor to butt plate 45"
(8) Stock width immediately behind stock ferrule 2"
(9) Stock width at rear of stock 2 1/2"
(10) Stock width at front and rear of the receiver 2 1/2"
(11) Stock depth immediately behind front stock ferrule 1 3/4"
(12) Stock depth where tips of trigger housing bedding pads rest 2"
(13) Stock depth from toe of pistol grip to comb of stock 4 1/2"
(14) Stock depth at butt plate 5 1/2"
(15) Total length from stock ferrule 33 1/2" with
butt plate,
min. 32 1/2")
(3) The rear sight aperture may have a hood no longer than 0.70". The rear sight aperture may have a fixed, non-adjustable aperture insert. A corrective lens may be inserted in the rear sight hood.
(4) Rear sight windage and elevation adjustments may be modified to allow finer adjustments. The front sight blade may be fixed or lockable.
(5) To stabilize the rear sight assembly, it may be fitted with one or more pins extending down into the receiver or with stabilizing projections extending forward no more than 5/16†into the top groove of the carrying handle.
(6) The flash suppressor and bayonet lug may be removed (or the rifle manufactured without a flash suppressor or bayonet lug) to comply with current law. Barrel length must not exceed 20 inches. If the rifle was manufactured without a flash suppressor, the barrel may not be threaded to take one.
(7) A screw may be inserted in the back radius of the pistol grip where it joins the lower receiver. This screw may extend into the rear lock-down lug of the upper receiver for the purpose of securing the upper and lower receivers. The screw head will not protrude above the original surface of the receiver. Both ends of the original takedown pin must remain in place so that the original outside configuration is not changed.
(8) Upper receivers may not be changed during the firing of any match.
(9) An external device may be attached to prevent selector lever movement to the auto position.
(10) The front sling swivel may be attached to the front ferrule of the handguard orfront tip of the “tube†(in the case of a floating barrel system) as long as it remains in the 6 o’clock position and is no more than ½ inch from the original position.
(11) The M16A1 Carbine butt stock or the commercial equivalent may be installed on an M16A2 or M16A4 rifle.
http://www.odcmp.com/Competitions/Rulebook.pdf pages 22 and 23.
This NRA rule:
3.1.3 Service Rifle- Any rifle or modified rifle not covered by NRA Rules 3.1, 3.1.1, or 3.1.2, but permitted by CMP rules are considered service rifles in NRA sanctioned competition.
makes the M16A4 a legal NRA service rifle.
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