BEWARE of cheap Chinese knockoffs they may cause serious injury  
this is the original MADE IN USA
Barrel bushing style compensator for Government (5”) barrel 1911 Autos.
FREE SPRING PLUG INCLUDED This spring plug is required for proper installation of any 1911 muzzle Brake
Will not fit Commander (4.25”) barrel or Officer/Compact (4” or shorter)
Model: Predator (curved ports)
Finish: Black Oxide
Barrel bushing compensator for Colt 1911/1911 clones
Fits 5” Government length 1911 Autos with a barrel OD between .577"-581".   The bushing ID. Is .583" +-.0005".
Fits calibers up to and including .45 acp. Can fit .38 and 9mm
Minor fitting may be required
Not compatible with bull barrels. This compensator is not threaded.
Suppresses recoil by venting gasses at muzzle and adding weight to the end of your barrel.
Adds approx. 1” length to your barrel and weighs 2.35 oz.
CNC Machined Billet Hardened, Aerospace grade stainless steel
Patented
What are the most common fitment issues I may encounter when installing an after market compensator?
Some buyers may find that they need to modify the locking lug on the compensator because the fit is too tight.  If you are comfortable making modifications yourself you can usually do so with either a dremel or fine grit sandpaper.  If not we recommend consulting a gunsmith.
If your stock spring plug is longer than 1.2" you will most likely either have to shorten your spring plug or use a Commander spring plug instead. Installation:
Start with the barrel and guide rod installed in the slide
Insert spring and then insert spring cap.
Depress the spring cap with thumb.  With spring cap depressed, insert compensator and twist into place.
Removal:
Insert the back side of a 3/8” drill bit or dowel pin with a diameter of .399" to depress spring cap.
Twist compensator counterclockwise to the 4 0’clock position
Remove compensator. 
DO NOT force the compensator onto your barrel.  These may require minor fitting depending on your barrel and slide combination, but should fit right onto a stock configured gun.  I highly encourage you to contact me or visit a gunsmith if you have any issues regarding the fit of the compensator.
Only use Standard Ammunition with these compensators. DO NOT use over pressure rounds ie P+ or P++
Return Policy:
Satisfaction is guaranteed! If you don't like the item simply return it unmodified and in good condition.  You will receive a full refund!
Further reading:
The Predator Model is a PATENTED design created exclusively by Valkyrie Dynamics.  The Predator design provides a better recoil reduction than the Punisher model.
Any Seller other than Valkyrie Dynamics is selling a copycat product and we do not guarantee it’s quality. 
All of our products are designed and machined by us in Southern California on state of the art CNC equipment.
We are now using a superior, Hardened Stainless Steel!!!!
The heat treating prior to machining eliminates warping that occurs in post heat treatment processes. 
CNC Machined Billet Hardened, Aerospace Grade, Stainless Steel
More than 2X HARDER/TOUGHER/STRONGER than 303 Stainless Steel.
Dealer pricing available!
It is YOUR responsibility to be absolutely certain that all parts are installed and fitted correctly.
Firearms are complicated mechanisms and improper installation and/or fitment can result in dangerous malfunctioning, damage to the firearm and serious injury to the shooter and other persons.
The purchaser/installer of parts must accept full responsibility for the correct adjustments and functioning of the firearm after such installation.
The purchaser takes full responsibility for any misuse, abuse, neglect, modification(s), improper installation, improper use, or improper handling.