Work done was:
Vang Comp System with Ports
Vang Comp Front Sight with Tritium Insert
Vang Comp Rear Sight
Vang Comp Stainless Steel Follower
Vang Comp Oversized Safety
Remington Forged Extractor
MagPul SGA Stock Set
Machined and Fluted Breach Bolt with Titanium Nitride Coating
Polished Fore-End Tube Assembly with Titanium Nitride Coating
Tactical Ordnance +1 Magazine Extension
Enlarged Feed Port, Machined and Polished
Trigger Plate Assembly Scallop Cut
Cerakote Refinish – Black
Taken from TACORD's website:
" The Tactical Ordnance Remington 870 ( Norinco HP9) is the most reliable and dependable on the market. Our receivers are hand-honed and the action bars are deburred, polished and coated with Titanium Nitride for a hard, durable protective finish that greatly reduces friction. In addition, the breach bolt is fluted, polished and TiN coated to reduce overall mass and friction during cycling.
Easy loading is an essential part on all Tactical Ordnance 870’s. The feed port of the receiver is machined, beveled and polished to create a natural funnel that greatly improves loading efficiency. A Vang Comp stainless steel magazine follower compliments the magazine tube by reducing spring binding, allowing the shooter to easily verify if the magazine tube is empty. Magazine capacity is increased by 2 shells with the Tactical Ordnance magazine extension that features a 3-way sling plate.
Accuracy is greatly improved from the Vang Comp System. Vang Comp sights allow for quick target acquisition and the integral picatinny rail gives you the versatility to add an optic. A Vang Comp oversized safety with its pronounced dome shape improves shooter control by allowing the release of the safety and acquiring the trigger at the same time."
The Vang-Comp System:
In SHORT:
Higher Rate of Accuracy- 12-inch shot patterns @ 25 yds. with standard 00 Buck, 2-times tighter than a cylinder bore barrel.
Less Felt Recoil- Faster follow-up shots, easier training, makes 12ga accessible to all shooters.
Maximize performance- No need for choke tubes and their maintenance/ limitations.
AND NOW THE REST OF THE STORY…
Vang Comp Systems was founded in 1990 by Gunsmith and Inventor Hans J. Vang with the mission of bringing innovative, high-quality parts and services to everyone who owns and uses a shotgun. Mr. Vang developed the Vang Comp System at the behest of a government agency which was searching for a way to make their duty shotguns safer to down-range bystanders, i.e. make their scatterguns shoot tighter shot patterns without the use of choke tubes. This government agency also complained about the recoil and night-time muzzle flash of the 12ga shotguns and requested a mitigation of these factors as well….
ENTER THE VANG COMP BARREL MODIFICATION SYSTEM.
Mr. Vang devised a system of lengthening the forcing cone of the shotgun barrel to allow a smoother transition of the shot column from chamber to bore, thus decreasing recoil and shot deformation. He would then further back-bore the barrel so that the shot column gradually tapered and squeezed together as it traveled down the bore towards the muzzle. Before they get to the muzzle, the hot expanding gasses which account for the muzzle flash are jettisoned through a precisely-calculated and rigorously-tested array of compensation ports. This hot gas is discarded through 62 holes, 31 on either side of the front sight which contributes to the flat shooting, reduced felt recoil, eliminated muzzle flip and diminished muzzle flash characteristics of the Vang Comp System.
AND HOW ABOUT THAT SHOT PATTERN?
With less deformation and a less turbulent flow, the pellets achieve a higher rate of accuracy. Back-boring the barrel from the chamber towards the muzzle creates a choke where there was none. The rule of thumb allows that a standard cylinder bore barrel will shoot about 1-inch of spread per yard from the target (5 yards from target= 5-inch shot spread).
The Vang Comp barrel modification produces shot patterns that are 2-times tighter.
