Make: F. Bob Chow Colt
Model: 1911 Mark IV Series 70
Serial Number: 70G70777
Year of Manufacture: 1970’s
Caliber: .45 ACP
Action Type: Semi-Auto, Single Action 1911
Markings: This gun has F. Bob Chow markings in several places: 1) the external bushing is marked “CHOW”, 2) the inside of the slide on the flat of the firing pin housing is marked “CHOW / 4 75”, and “MB BR S PA”, 3) the barrel is marked “45 Auto / NM 7791414 / CHOW”. The left side of the slide is marked “Colt Mark IV Series 70 / Government Model / .45 Automatic Caliber”. The right side of the slide is marked “Colt’s Government Model”. The right side of the frame is marked “Colt’s Pt. F.A. Mfg. Co. Hartford. Conn. U.S.A. / 70G70777”. There is an “S” on the right side of the trigger guard.
Barrel Length: 5 1/2″
Sights / Optics: The gun is mounted with a front sight blade mounted in a one piece full length Bo-Mar rib. The rear sight is both elevation and windage adjustable. This configuration is one of the things that helped put Chow on the map.
Stock Configuration & Condition: The stock(s) is/are wood in very good condition showing little use and no major cracks or losses.
Type of Finish: Blue
Finish Originality: Original
Bore Condition: The rifling is sharp and deep. The bore is bright with only some minor fouling at the breech. There is no apparent erosion.
Overall Condition: This gun retains about 98% of its metal finish. The balance of the finish shows just minor wear/use from slight handling. The screw heads are in good condition and show minor use. The markings are clear. Overall, this gun rates in about excellent condition. You really could not expect to find a higher condition gun than this. These guns were built to shoot, and shooting leads to wear. This one was obviously cared for and only lightly shot.
Mechanics: The action functions correctly. We did not test fire this gun. This gun has been prepared by F. Bob Chow, see our assessment below. The inner rails and all bearing surfaces have been polished and fitted, the mainspring housing is flat, the trigger has been smoothed and is less than 1 lb, there is a national match barrel, the front grip strap has been stipled. Our consigner states that with 185 grain semi wad-cutter bullets, you can keep putting them in the same hole out to 25+ yards. The work from Bob Chow is legendary and is considered the highest level of accuracy work obtainable throughout the 70’s and 80’s and even to this day.
Box & Accessories: The original Colt box with end flap matching the serial number of this gun is included. A copy of the Bob Chow receipt for work done on this gun is included. Everything included is photographed.
Our Assessment: This gun has been amazingly prepared by F. Bob Chow, there is a copy of the receipt for this gun from Bob Cow in 1975 that shows ; Bo-Mar ramp, magazine, flat housing, grips, stipple (light), install sights, ejector, full accuracy work. This is a seldom encountered chance to obtain an F.Bob Chow prepared .45 in its original box in excellent condition with a copy of the original receipt. If you add just one more gun to your collection this should be it.!!!!!!!! If you are a California resident, the only way you can obtain one of these Bob Chow guns is by private party transfer which we offer. Don’t let this opportunity pass you by.
Sold For: $4,500