I bought this brand new in June of 2002 as an extra directly from Bushmaster. Copy of receipt available to purchaser. Model # is PURA3B14M4Y. This is the post ban 14.5" barrel with the permanently attached mini Y comp muzzle brake, 1-9 twist. The only rounds through it are the test rounds from Bushmaster. Sorry but bolt, carrier, and charging handle are no longer available. This upper goes for $430 from Bushmaster plus $19.95 for shipping. Asking $380 plus $20 insured shipping to lower 48 states. I've read that sometimes Bushmaster has a backorder on these uppers so here's your chance to get a new one for a little less than retail. I will also include (2) used preban 30 round USGI magazines if you do not live in a restricted/prohibited area. Mags show some finish wear but function fine. They have been upgraded with green followers. I WILL NOT SEND TO RESTRICTED AREAS SUCH SO PLEASE DO NOT ASK. I can also accept payment via PayPal for those of you with an account and who wish to use a credit card for payment. I will absorb the 3% PayPal fee as a cost of doing business.