Knowledge Base - Topic : Bushmaster Technical Datahttp://www.bushmaster.com/faqs/afmmain.aspxWelcome to our knowledge Base Center. Here you will quickly find answers to some of our most commonly asked questions.FAQ # 2582 : Which bullets should I stay away from using by CMP Comp 1:8 20" barrel? High to-low, which ones have you found to be most accurate on 200-300 yard course of fire? 55g, 62, 69, 77, & 80.http://www.bushmaster.com/faqs/?f=2582Sun, 11 Jul 2010 00:00:00 GMTFAQ # 2502 : I have a carbon 15 m4 style rifle with a none telescoping stock is it commercial spec our mil spec? To change the stock do I only need to buy a reciever extension tube to go with the commercial MOE Stock I bought?http://www.bushmaster.com/faqs/?f=2502Fri, 04 Jun 2010 00:00:00 GMTFAQ # 2495 : How can I get an owners manual for my ( BANNED ERA ) XM15-E2S ?http://www.bushmaster.com/faqs/?f=2495Tue, 01 Jun 2010 00:00:00 GMTFAQ # 2483 : Does the Bushmaster O.R.C. rifle have a threaded A2 flash suppressor? It says that it has a 16" barrel so a permanently attached flash suppressor is not required to make it legal and if I was to purchase the rifle I would be interested in installing an aftermarket muzzle break on it. I have seen some online dealers listing the rifle as having the flash suppressor permanently attached but I can find no hard data to confirm or deny it. Thank You.http://www.bushmaster.com/faqs/?f=2483Wed, 26 May 2010 00:00:00 GMTFAQ # 2470 : i am looking at buying a carbon 15 pistol and was wondering if an Adams Arms Pistol Piston Retro Fit Kit would fit. I had contacted Adams Arms, and they were unable to tell for sure if it would fit. I was wondering if you could send the barrel specs to me so i could find out if the kit will fit. What is the length between the barrel extenion and the gas port? Thank you very much?http://www.bushmaster.com/faqs/?f=2470Tue, 18 May 2010 00:00:00 GMTFAQ # 2468 : I was wondering, is the Bushmaster ACR legal in California?http://www.bushmaster.com/faqs/?f=2468Mon, 17 May 2010 00:00:00 GMTFAQ # 2448 : Two Questions: Will a free float handguard go over the factory gas block on a .223 o.r.c.? What is the factory trigger pull weight of the .223 o.r.chttp://www.bushmaster.com/faqs/?f=2448Thu, 06 May 2010 00:00:00 GMTFAQ # 2446 : is your m4 buttstock milspeck or commercialhttp://www.bushmaster.com/faqs/?f=2446Wed, 05 May 2010 00:00:00 GMTFAQ # 2427 : i bought a 450 bushmaster complete upper from you guys in september of 2009. today when i was shooting the extractor broke. is this covered by warranty or how can i order a new extractor. i looked on your website product catalog but couldnt find any replacement parts for the 450http://www.bushmaster.com/faqs/?f=2427Sun, 25 Apr 2010 00:00:00 GMTFAQ # 2416 : I just sold one of the new Bushmaster .308 ORCs to a customer who wants to put a quad rail on it. What other .308 models have the same barrel nut threads? Or what quad rails will work?http://www.bushmaster.com/faqs/?f=2416Wed, 21 Apr 2010 00:00:00 GMTFAQ # 2410 : I have recently bought aused Varmiter with a stainless barrel.. What is the twist on the barrel? Is it stamp on the upper or on the barrel itself? What is the best weight bullet to shot in this rifle?http://www.bushmaster.com/faqs/?f=2410Sun, 18 Apr 2010 00:00:00 GMTFAQ # 2398 : What is the thread of the flash hider on my 308 Win ORChttp://www.bushmaster.com/faqs/?f=2398Mon, 12 Apr 2010 00:00:00 GMTFAQ # 2378 : I am interested about the 7.62 capabilities of the ACR. The is not much information about that aspect of it even though you say it will be available. I would like to know if current models will be accepting of this barrel and any other information about this upcoming feature?http://www.bushmaster.com/faqs/?f=2378Tue, 06 Apr 2010 00:00:00 GMTFAQ # 2356 : Can I go online with serial# and for sure i.d. type and specs. of my rifle?Whats the best cleaning kit for my rifle?Sir, do all new rifles come with metal residue EVERYWHERE?http://www.bushmaster.com/faqs/?f=2356Sun, 28 Mar 2010 00:00:00 GMTFAQ # 2283 : I have a Bushmaster mod xm15 - es2 . The flash hider is 5 and 1/2 inches long and the barrel lenght is 11.5 inches longe . The flash hider has 8 mp 5.56 nato 1/9 h bar on it . Is that flash hider removable or is it permanant. The over all barrel length is 16 inches if that helps . Thank you for any help , i want to replace it but dont want to tear anything up removing it . Thank you again. http://www.bushmaster.com/faqs/?f=2283Mon, 01 Mar 2010 00:00:00 GMTFAQ # 2281 : I just a Bushmaster AR-15 Model. XM15-E2S. is this a Home Defense model or somthing else? Just wonderin! Thanks!http://www.bushmaster.com/faqs/?f=2281Mon, 01 Mar 2010 00:00:00 GMTFAQ # 2270 : The new ACR says that it has interchangeable calibers, 5.56 and 6.8. I saw in the FAQ that 7.62 will be available in 2011. Does this mean that one purchased now will be able to convert to 7.62 once a barrel is released in that caliber in 2011? Does the current Multi-caliber bolt carrier support 7.62 as well? What is missing from the current model to make it support all 3 calibers?http://www.bushmaster.com/faqs/?f=2270Fri, 26 Feb 2010 00:00:00 GMTFAQ # 2263 : Will any AR-15 Magazine fit in the M4/A3?http://www.bushmaster.com/faqs/?f=2263Tue, 23 Feb 2010 00:00:00 GMTFAQ # 2257 : I purchased a used rifle and need to know what the specs are. How do I tell if the barrel is chrome lined. Mod. XM15-E2S Barrel stamp B MP 5.56 NATO 1/9 Also can I get an owners manual for this gun?http://www.bushmaster.com/faqs/?f=2257Sun, 21 Feb 2010 00:00:00 GMTFAQ # 2248 : i recently purchased a bushmaster orc and im having trouble finding aftermarket handguards any suggestions would be great.http://www.bushmaster.com/faqs/?f=2248Fri, 19 Feb 2010 00:00:00 GMTFAQ # 2239 : I have the Bushmaster Modular Carbine with the skeleton stock. My question is whether the buffer tube is mil spec or commercial spec?http://www.bushmaster.com/faqs/?f=2239Tue, 16 Feb 2010 00:00:00 GMTFAQ # 2225 : Do you have an AR-15 with the gas operated piston system that a civilian can purchase? If so, can you send me info on it along with the price? Thank you!http://www.bushmaster.com/faqs/?f=2225Thu, 11 Feb 2010 00:00:00 GMTFAQ # 2199 : I have a post-ban 2003 XM-15 M4A3 with the fixed tele-style stock. I want to convert it to collapsable style. Is your buffer tube assembly "mil-spec" or "commercial" diameter? Thank You, I appreciate your help.http://www.bushmaster.com/faqs/?f=2199Thu, 28 Jan 2010 00:00:00 GMTFAQ # 2198 : can you use a 7.62x39 upper receiver on a california legal ar15 lower. do you make a 7.62x39 california legal ar15.http://www.bushmaster.com/faqs/?f=2198Wed, 27 Jan 2010 00:00:00 GMTFAQ # 2197 : can you upgrade a .223 california legal ar15 with a 6.8 mm upper receiver. and also, do you sell any complete 6.8 mm california legal ar15.http://www.bushmaster.com/faqs/?f=2197Wed, 27 Jan 2010 00:00:00 GMTFAQ # 2192 : Why does the ACR no longer have the ability to switch between 5.56 and 7.62 as previously reported?http://www.bushmaster.com/faqs/?f=2192Mon, 25 Jan 2010 00:00:00 GMTFAQ # 2178 : On the bushmaster acr. What is the barrel rate of twist? What kind of accuracy should we expect?http://www.bushmaster.com/faqs/?f=2178Sat, 23 Jan 2010 00:00:00 GMTFAQ # 2177 : I own the 97s pistol.What can be done with the protruding tube on back of gun? Do you have something as a butt stock to go over it?http://www.bushmaster.com/faqs/?f=2177Sat, 23 Jan 2010 00:00:00 GMTFAQ # 2168 : Hi I have a xm15-es2 serial number BFI408509 could you send me the technical data and the grade of steel used in for the barrel. Thank You in Advance Stevehttp://www.bushmaster.com/faqs/?f=2168Thu, 21 Jan 2010 00:00:00 GMTFAQ # 2164 : I just bought a used bushmaster model xm15-e2s. Tha serial number is BFI 407298. I really dont know much about it. It has a twenty inch barrel i think that means that it is a target model but not sure. also in there any way to get an operator manual for this gun. Thanks any info that you can give would be great.http://www.bushmaster.com/faqs/?f=2164Wed, 20 Jan 2010 00:00:00 GMT