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Posted: 6/2/2009 2:42:52 PM EDT
Just wanted to show a new addition to the line up of BCM™ products.
BCM SS410™ Barrels This stripped barrel is machined from a 410 stainless steel. It features hand lapped button rifling with a 1/8 twist rate and M4 feedramps. To give the shooter the best balance of weight and accuracy the barrel has a mid weight profile. (410 stainless is a harder and more corrosion resistant than the conventional 416 stainless found in most barrels.) ![]() ![]() Currently comes is 2 lengths. A 16" mid length and a 11.5" carbine length. ![]() Requires the use of the .750 gas block. Dimpled for gas block installation. ![]() Proofed and MP Inspected ![]() ![]() We have had a these in the field for T&E by a number of good folks and have received excellent feedback. We have plans for some complete upper groups (w/ low pro gas block) in Q3 or Q4 of 2009. We do not currently have plans for uppers with pinned FSB. Right now we just have stripped barrels available. Features M4 Feed Ramp Barrel Extension Mid Length Gas System 1/8 Twist Rate 5.56 NATO Match Chambers (USMC SAM-R Chamber) 410 Stainless Steel Mid Weight Contour Profile Barrels Button Rifled Hand Lapped Rifling HPT (High Pressure Test) Barrels MPI (Magnetic Particle Inspected) Barrels More info and pics at this link to our webpage.................................. Thanks for looking. ![]() |
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Just curious, why not a sand/bead blast finish?
What about 18 in? |
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I'm still gathering parts to build up the 16" i picked up,
gotta say it's a beautiful barrel - can't wait to break it in. |
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Just curious, why not a sand/bead blast finish? What about 18 in? You want sand blast - I can do that. |
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Just curious, why not a sand/bead blast finish? What about 18 in? I like blast finishes, but they scuff very easy and they can only be fixed by reblasting again. If is is polished like we have them, the shooter can choose to blast if they wish. Considering a 18", but no immediate plans for 2009. Thanks! |
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How about ION bond finish as an option? If you do an ION bond finish on an 18in barrel I would buy one in a heartbeat. I would be willing to bet a bunch of other people would too. ![]() ![]() |
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For the LaRue .750 Lo-Pro gas-block, it says
They mount using two set screws located at the bottom, so gun-smithing will be needed on barrels without divots. Is this talking about the dimple, or is further gunsmithing required? ![]() (Specifically for the 11.5" bbl, if that matters at all) |
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Will an Adams Arms piston gas block have room to fit ? OR What is the length of the barrel gas block step ? Thanks
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Will an Adams Arms piston gas block have room to fit ? OR What is the length of the barrel gas block step ? Thanks Gas system is a mid length. Not sure on specifics of Adams. Best to consult with them. |
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So, whaddya think the barrel life is with a SS barrel like that? Sure is nice lookin!
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Paul,
Any chance that BCM will offer these barrels with a USGI 'F' FSB? -Jim |
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Tag for the inevitable breakdown of will power............ Maybe this will help: my" in progress" project withe the BCM 16 inches SS410 barrel I am seriously considering getting the 11.5 too ![]() http://i267.photobucket.com/albums/ii286/glarms/DSCF0954.jpg?t=1244944029 Very Nice !!! |
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So, whaddya think the barrel life is with a SS barrel like that? Sure is nice lookin! All things equal the life should be improved with 410 vs 416 stainless. But barrel life is really a function of heat. Shooting 10K rounds slow will show much less wear then shooting 10K fast. |
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Paul, Any chance that BCM will offer these barrels with a USGI 'F' FSB? -Jim Hi Jim, Probably not on barrels alone. We may offer complete upper groups with the SS410 barrels on F-FSB, but that is not for sure. |
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Paul,
Roger that. Please please do consider that as an option. -Jim |
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Looks very interesting ! I,ll stay tune for accuracy reports compared to other barrels -
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Good stuff ;) http://i278.photobucket.com/albums/kk99/USMC03_photos/Monthly%20Rifle%20Matches/DPP_0036-1.jpg S/F, Jeff EXACTLY what I'd be looking for! |
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So, whaddya think the barrel life is with a SS barrel like that? Sure is nice lookin! 20K easy - so that would be $8,000,000 worth of ammo @ $400 per K. Just buy one and if you can afford that much ammo, I'd like to be friends. ![]() I'll even supply hookers and blow. |
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So, whaddya think the barrel life is with a SS barrel like that? Sure is nice lookin! 20K easy - so that would be $8,000,000 worth of ammo @ $400 per K. Just buy one and if you can afford that much ammo, I'd like to be friends. ![]() I'll even supply hookers and blow. $8,000,000 seems a little high ![]() |
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Any issues with a 5.56 chamber rather than a wydle ? Some have said it will not be as accurate.
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Our chamber is 5.56 NATO but modeled after the USMC SAM-R chamber. That rifle has no problem with accuracy.
The feedback we have had on accuracy has been outstanding. |
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UPS dropped off my 16" SS410 (for first forthcoming Recce build.....)
Will issue range report after build is finished later this fall as funds and parts allow...Thanks for the prompt, excellent service BCM! |
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I'll echo some others in requesting a stainless 18" complete upper! Pretty please?
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BCM SS410™ 16" Mid Length Upper Receiver Group w/ Daniel Defense Lite 12" Handguard 1/8 Twist
Here's my review from Bravo's website: "Capable of 12-shot 2" groups @ 100 yds with run-of-the-mill 55gr FMJ M193 ammo. I haven't tried heavier match ammo yet, but I'm sure it will be one MOA or smaller. Any Joe Blow can pull off sub MOA 3-shot groups. But it takes an upper like this to maintain a tight 12-shot group." This is by far the most accurate AR upper in my little stable of 5.56 NATO chambered rifles including a 20" COLT Match HBar, CMMG 16" Middy and a Sig 556. I'm no expert but I think the 1 in 8 twist rate in the BCM SS410 barrel slows down the 55gr M193 enough to improve accuracy. A bit pricey but worth every penny when it's giving you tighter-than-a-prom-queen's ass group shots. ![]() |
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How about ION bond finish as an option? Here's an order form to Melonite treat it yourself: H.E.F. USA |
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Now do the same thing in 6.8 with 1/11 twist and Spec II chamber, pretty please!
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I really want one of BCM Complete uppers with their SS410™ Barrel,but I,ll wait until a finish is available ..
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BCM SS410 16.1" Recon Barrel (DIAMOND BLACK ION BOND Finish) Nice! Wher'ed you get the Ion Bond finish done? |
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I sent it out to Scott Springer at Springer precision in Bend Oregon.
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I sent it out to Scott Springer at Springer precision in Bend Oregon. How much was it? |
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I sent it out to Scott Springer at Springer precision in Bend Oregon. How much was it? $65.00 to do the barrel |
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I sent it out to Scott Springer at Springer precision in Bend Oregon. How much was it? $65.00 to do the barrel Stupid question...The coating is just on the outside of the barrel, correct? |
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I sent it out to Scott Springer at Springer precision in Bend Oregon. How much was it? $65.00 to do the barrel Stupid question...The coating is just on the outside of the barrel, correct? Correct. |
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This thread needs more range reports with PICS!
ETA: Where are the pics?! ![]() |
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For the LaRue .750 Lo-Pro gas-block, it says They mount using two set screws located at the bottom, so gun-smithing will be needed on barrels without divots.
Is this talking about the dimple, or is further gunsmithing required? ![]() (Specifically for the 11.5" bbl, if that matters at all) This is what I need to know. I have a BCM 11.5 inch barrel sitting on my work bench waiting to be installed. |
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For the LaRue .750 Lo-Pro gas-block, it says They mount using two set screws located at the bottom, so gun-smithing will be needed on barrels without divots.
Is this talking about the dimple, or is further gunsmithing required? ![]() (Specifically for the 11.5" bbl, if that matters at all) This is what I need to know. I have a BCM 11.5 inch barrel sitting on my work bench waiting to be installed. No, you will not need to add more dimples. Tighten (and loc-tite) all retaining screws on your gas blocks. But just the first retaining screw in counter sunk in a dimple. BCM stripped barrels have one dimple. That dimple is to insure the securest fastening of the rear retaining screw. That first dimple is mil standard measurement. It exists in the same spot on every gas block or FSB made for the M16/M4. The reason is that the machining operation to drill the vertical hole for the gas port in the gas block, is also the same op to form the hold for the first retaining screw. (actually the same on a standard FSB) So it is a standard. After that a second retaining screw position will vary with every single gas block made. No more standard. Some gas blocks are the same because they copied others, but their is not a set position. A second dimple would require you to only pick from a sepecifc gas block/s. You can throw a second dimple in for fun if you want, but its not needed. |
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Just built my Daniel Defense upper with my awesome BCM 11.5" SS410 barrel. Range report whenever my approved Form 1 arrives. http://www.therearemanylikeit.com/bgo/sbr1/sbr-2.jpg http://www.therearemanylikeit.com/bgo/sbr1/sbr-3.jpg http://www.therearemanylikeit.com/bgo/sbr1/sbr-4.jpg http://www.therearemanylikeit.com/bgo/sbr1/sbr-5.jpg http://www.therearemanylikeit.com/bgo/sbr1/sbr-6.jpg Love it, whats the rail length? I have a 9.5 I am planning on pairing with a 11.5" BCM |
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