Posted: 11/24/2008 10:08:50 AM EDT
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I posted this in the AR Discussion section earlier today. So this is a double post.
Thought someone might know? I bought a RRA Upper last week from PK Firearms. I got it today!! Do manufactures usually but there name on the upper. I don't see a RRA Stamp on the flat top? I'm new so sorry if this is a dumb question. How would anyone know who manufactured it if it's not labeled or marked? Thanks Toby |
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Applicable "codes" for 223 barrels:
Old Codes: Three characters side by side over the chamber. First Character: N or W...N for NATO chamber or W for Wylde Second Character: 8 or 9...8 for 1:8 twist and 9 for 1:9 twist. Third Character: A, S, or C...A for moly (chrome -moly Alloy), S for Stainless, and C for Chrome-lined alloy. New Codes: The actual base part number from our parts system/catalog, located over the chamber. These are the most common. Unless indicated otherwise, all stainless barrels are 1:8 twist and all moly barrels (chrome-lined or not)are 1:9. All 16" moly barrels have a NATO chamber, while the 20" moly and all stainless barrels have a Wylde chamber. 200 Moly CAR 200CL Chrome-lined CAR 202 Moly R4 204 Chrome-lined R4 205 Chrome-lined light-weight R4, 1:7 206 Stainless CAR 208 16" varmint 209 Moly 7" 210 Moly Mid 212 Chrome-lined Mid 213 Moly light-weight Mid 213CL Chrome-lined light-weight Mid 215 Stainless Mid 218 18" varmint 219 Chrome-lined light-weight R4, 1:9 220 Moly Std (rifle) 221 Chrome-lined Std (rifle) 222 Stainless NM(rifle) 223 Stainless NM (rifle), unthreaded 225 Moly 10.5" 225CL Chrome-lined 10.5" 226 20" varmint 228 24" varmint (1:8) 229 24" varmint (1:12) 232 Moly light-weight CAR 232CL Chrome-lined light-weight CAR YOU MAY START TO SEE SOME "S" AND "C" MARKINGS AFTER THE NUMBERS...THE "S" FOR STAINLESS AND THE "C" FOR CHROME-LINED...PRIMARILY TO HELP PEOPLE BOTH IN-HOUSE AND OUT TO KNOW AT A GLANCE WITHOUT HAVING TO REFER TO A CATALOG. Steve/RRA ....CHECK UNDER YOUR HANDGUARDS NEAR THE CHAMBER |