The FAQ was born: February 9, 2001.

Last Updated: March 09, 2005

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New DeSignz Impulse Hammer Cap

From the Web site:

Just when you thought nothing else can be done.  Guess again, however this time you can add looks as well as great performance. If you have the slotted style cap you'll notice its hollow. Replace it and you will see a performance gain.  For newer Impulse owners its about customization. Great custom looks and performance.

  • Actual tests show that the solid hammer caps increase your velocity as well as cycling the marker faster, and its noticeable..  HPA users can see a 14-25fps increase while co2 users normally see about 3-7fps.
  • The stock series shown has a 1/8 allen fitting.
Pictures taken from www.newdesignz.com

Testing the Hammer Cap:

The Hammer cap test consisted of the the original Smart Parts hammer cap and a New DeSignz hammer Cap.  A Vision Impulse was used with a New DeSignz Angled Full Flow installed.  The entire gun was cleaned and lubed, including the Max-Flow, prior to the test.  The Dwell was not adjusted once the test started.   The output pressure on the max-flow was set at 125psi.  For the test the air source was a NitroDuck 90/4500 preset compressed air tank running on gun.  The paint used in the test was Nitro Duck First Choice paint and the barrel was a 14" Freak with a .691 insert.  The paint was a little old and that was the reason for a slightly larger insert than normal.  This explains some of the shot deviation.

Table 1: Shots recorded with each hammer cap.
  1 2 3 4 5 6 7 8 9 10
Stock 252 249 250 251 243 244 245 245 248 249
New DeSignz 276 272 273 278 275 279 277 275 273 277

 

TABLE 2: Statistics for each hammer cap based on the data in Table 1
  Average STD MIN MAX MIN/MAX range Variance from Stock
Stock 247.60 2.97 243 252 9  
New DeSignz 275.50 2.20 272 279 7 27.90

As you can see once the hollowed out hammer cap is replaced with a hammer cap that is solid, there is a substantial gain in velocity.

How do I know if I NEED a new cap?

You need one because it's cool!!  But, beyond the cool factor, that's simple, remove your existing hammer cap and look on the back.  It it's hollow you NEED a new cap.  If it's solid you do not need a new cap.  If you currently have an allen key opening on your hammer cap chances are VERY good that your hammer cap is solid but you should check to be sure.

New DeSignz Hammer Cap in
Biohazard Black on my Impulse

Installation:

  1. Using a flat tip screwdriver remove the existing hammer cap.
  2. While the cap is off, remove any excess Dow 33.
  3. Using a 1/8" Allen key install the New DeSignz hammer cap.
  4. Enjoy!!

NOTE: The original Smart Parts hammer cap with an allen key takes a 3/16 allen.

Updated New DeSignz Hammer Cap Designs.  From top left is Biohazard,
Nuclear, Cracked, Dragon,  2nd row left Target, Web and Chrome.

The Details

  • Installation: Installation is easier than easy.
  • MSRP: $17.95 engraved, $14.95 non engraved
  • Options: Currently available in Red, Blue, Purple, Green, Silver and Black.  For both the engraved and non engraved.
  • Pro's: If you have an older Impulse with a large screwdriver slow in the hammer cap YOU NEED ONE OF THESES!!!
  • Cons: None.

Special thanks to Tsunami Paintball Center in Buffalo NY for the use of their chrono so I could perform this test.