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9/22/2017 12:11:25 AM
Posted: 3/18/2001 12:56:01 PM EDT
I got this Colt AR labled Sporter Match HBAR. Serial# 063xxx. Has a bayo lug and FH. How can I tell if this is a "Green Label" gun or not? I'm new to these rifles and not to familiar with the specifics. Also the barrel stampings read as follows: C MP 5.56 NATO 1/7 I know C = Colt and 5.56 is caliiber and 1/7 is rifling twist. Whats MP and does this barrel have a chrome lined bore? TIA
Link Posted: 3/18/2001 3:03:35 PM EDT
Yes, the barrel is chrome lined.
Link Posted: 3/18/2001 4:18:43 PM EDT
Does your SN begin with MH? If so you have a "blue label" model R6601. Unusual for it to have a bayo lug from the factory but possible.
Link Posted: 3/18/2001 4:29:22 PM EDT
I have a some 6601s in the MH053xxx and MH047xxx range. They are both "blue label" Sporter Match HBARs with sear blocks, large H/T pins, small front pivot w/ drilled fence, and none came with bayo lugs. Your barrel may have been changed or the upper swapped out. You can call Colt w/serial number to verify your preban status.
Link Posted: 3/18/2001 4:41:59 PM EDT
Colt 800-962-COLT CC001616 and Below - Pre-Ban CH019500 and Below - Pre-Ban GC018500 and Below - Pre-Ban LH011326 and Below - Pre-Ban MH086020 and Below - Pre-Ban NL004800 and Below - Pre-Ban SL027246 and Below - Pre-Ban SP360200 and Below - Pre-Ban 1963 SP00001-SP00023** 1964 SP00101 1965 SP02501 1966 SP05600 1967 SP08250 1968 SP10750 1969 SP14000-SP14653 1970 SP15001-SP15473 1971 SP16001 1972 SP19401 1973 SP24201 1974 SP32601 1975 SP43801 1976 SP55301 1977 SP67651 1978 SP83400 ST038100 and Below - Pre-Ban TA10100 and Below - Pre-Ban BD000134 and Below - Pre-Ban (AR-15A3 Tactical Carbine - very rare model) MT00001 and Above - Post-Ban BK000001and Above - Post Ban (CAR-A3) CST000001 and Above - Post-Ban (Began Late 1997 Production) CMH000001 and Above - Post Ban CCH010000 and Above - Post Ban MT6700, MT6700C and MT6700CH series, 1998 produ
Link Posted: 3/18/2001 4:55:38 PM EDT
The serial# does begin with MH. According to the serial # list on the old site this is a preban rifle. Doing some research I have found that Colt didn't ship this rifle with both the lug and FH. They shiped with the FH only from what I can see. Anyway I like the rifle very much! I guess the barrel was changed or the whole upper was changed. Is this a bad thing? I hope not! Also this thing about pins and what not. The reciever has 1 pin just above the grip and another right above and in front of the mag well, both the same diameter except the one near the mag well has a "head" on the right side with a flatened portion that rests against a raised fence around the mag well. Also this pin has small holes in the ends that would seem to be for a pin punch or something. On some Colts I have seen a screw in this position. Whats the difference, which is more desirable? I got this rifle on a whim, the deal just fell together, did I get a good rifle? I have a Bushmaster on order that will be here this week that would have been my first AR but like I said I just came across this so I'm naive about alot of the details. Thanx for all the info keep it coming! This site is great!
Link Posted: 3/18/2001 5:19:25 PM EDT
Correct me if I'm wrong, but doesn't "MP" refer to "magnetic particle"? As in: "Magnetic Partical Testing"? Magnetic Particle Testing is a method of testing metal objests for small cracks.
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