I am not a professional gunsmith. I’m just a home hobbyist. Do your own research before doing any gunsmithing.
Barrel From:
Gunsmithing Tools and Gun Parts (using these links to buy tools, etc., will help support this channel, but at no additional cost to you. Also, if you browse and purchase other products after clicking on these links, that will still help support this channel.)
Brownells (AR-15 tools and parts)
CLYMER LIVE PILOT FINISH REAMERS |
PHASE 5 TACTICAL AR-15 LO-PRO SLOPE NOSE FREE FLOAT QUAD RAILS |
LAW TACTICAL LLC AR-15/M16 GEN3-M FOLDING STOCK ADAPTER |
FAILZERO AR-15 EXO BARREL EXTENSION |
CROSS MACHINE TOOL CO., INC. AR-15 BILLET AMBIDEXTROUS MATCHED RECEIVER SET |
REAL AVID ARMORER’S MASTER WRENCH |
BROWNELLS PIVOT PIN DETENT DEPRESSOR |
BROWNELLS GEN II ARMORERS KITS |
CMMG AR-15 SAFETY SELECTOR |
BROWNELLS AR-15 MOE STOCK ASSY COLLAPSIBLE MIL-SPEC |
AERO PRECISION AR-15 M4E1 FIELD REPAIR KIT |
BROWNELLS AR-15/M16 MIL-SPEC BUFFER TUBE ASSEMBLY |
BROWNELLS AR-15 LOWER PARTS KIT 5.56 |
RADIAN WEAPONS AR-15 RAPTOR CHARGING HANDLE 5.56 |
AERO PRECISION AR-15 UPPER PARTS KIT |
COLT LOWER RECEIVER PARTS KIT |
REAL AVID AR-15 ARMORER’S MASTER KIT |
BROWNELLS M16 5.56 BOLT CARRIER GROUP NITRIDE MP |
BROWNELLS AR-15/M16 BUFFER TUBE ASSEMBLY |
CMMG AR-15 SAFETY SELECTOR |
MAGPUL PICATINNY AFG2 ANGLED FORE GRIP |
BROWNELLS BOLT CATCH PIN PUNCH |
MIDWEST INDUSTRIES, INC. AR-15 GAS BLOCK LOW PROFILE |
LUTH-AR LLC AR-15 LOW PROFILE GAS BLOCK |
CMMG AR-15 LOWER PARTS KIT |
SUPERLATIVE ARMS LLC AR-15 ADJUSTABLE GAS BLOCK .625″ SOLID |
AERO PRECISION AR-15 LOWER PARTS KIT NO FCG/ PISTOL GRIP/ TRIGGERGUARD |
CMMG AR-15 LOWER GUNBUILDER’S LOWER PARTS KIT |
AERO PRECISION AR-15/M16 STRIPPED UPPER RECEIVER |
SLR RIFLEWORKS AR-15 MICRO GAS BLOCKS STEEL SET SCREW |
DANIEL DEFENSE AR-15/M16 5.56 HAMMER FORGED BARRELS |
STRIKE INDUSTRIES AR-15 ENHANCED ULTIMATE DUST COVER STANDARD |
COLT AR15A4 UPPER RCVR ASSEMBLY, CARBINE |
AERO PRECISION AR-15 M4E1 ENHANCED UPPER RECEIVER |
RISE ARMAMENT AR-15 ADVANCED PERFORMANCE TRIGGER |
ALG DEFENSE AR-15 ENHANCED MILITARY-STYLE TRIGGERS |
GEISSELE AUTOMATICS LLC AR-15/AR 308 HI-SPEED NATIONAL MATCH TRIGGER SET |
TRIGGERTECH AR-15 TT-AR-15 TRIGGERS ADJUSTABLE |
HIPERFIRE AR-15 HIPERTOUCH® SERIES TRIGGER ASSEMBLIES |
AMERICAN TRIGGER CORPORATION AR-15 AR GOLD TRIGGER CURVED |
BRAVO COMPANY AR-15 BCMGUNFIGHTER™ PNT TRIGGER |
RADIAN WEAPONS AR-15 RAPTOR-LT CHARGING HANDLE 5.56 |
GEISSELE AUTOMATICS LLC AR-15 AIRBORNE CHARGING HANDLE |
MAGPUL AR-15/M16 B.A.D. LEVER™ |
AERO PRECISION AR-15 LOW PROFILE GAS BLOCK .750 |
KE ARMS LLC AR-15 GI LOWER PARTS KIT |
BROWNELLS AR-15 GAS BLOCK NITRIDE |
AERO PRECISION AR-15 M4E1 STRIPPED LOWER RECEIVERS 5.56MM |
AERO PRECISION AR-15 GEN 2 STRIPPED LOWER RECEIVER, BLACK |
WHITE OAK ARMAMENT AR-15/M16 223 WYLDE MATCH BARRELS |
CMMG AR-15/M16 300 BLK BARRELS |
FAXON FIREARMS AR-15/M16 5.56 PENCIL BARRELS |
Damn that a lot of movement on that cutting post.
Make you some copper spacers for you chuck jaws, standard thread pitch for .308 cal is 5/8-24, 5.56/.223 is 1/2-28. on all my suppressors. We made the spider for the back of the spindle, and I with the method I use to center the bore with a 4 jaws is pretty quick.
Hi Jay,
I don't want to sound too harsh so apologies in advance; I really think before you work with barrel blanks you need to go back and give your lathe a thorough test on basic bar stock and the like. I would not tolerate the amount of vibration and oscillation in both workpiece and tool I'm seeing in the video. It's too much for even basic small metal parts, much less a gun barrel. I admit to having even less lathe time than you, but I'm still concerned your tool isn't sufficient.
Maybe a good way forward would be to look up the Mil Spec (If you haven't already) and put together a test of your equipment using basic bar stock to try and mill the tolerances and dimensions specified.
Nice work Phil.
What is the correct tolerance on concentricity, measured on the pad ?? , how did you build the central pad ?? Thanks Fabio
… I'm waiting for part 5 😉 Chambering and finishing …