Harbor Dive Center | 200 Harbor Drive, Sausalito, CA 94965 | 1-415-331-0904 | hdc@harbordive.com | hdc mobile site
Monday thru Friday 10 am to 7 pm  |  Saturday & Sunday 10 am to 5 pm
Located in the waterfront community of Sausalito, along San Francisco Bay, Harbor Dive Center serves local/regional customers and travelers passing through the San Francisco Bay Area.
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Scuba lessons & equipment -- get information on PADI's entry-level scuba lessons, the PADI Open Water Diver certification  /  learn about our customers' favorite scuba equipment.
PADI Online Scuba Courses
PADI online scuba courses -- sign up and complete your scuba course academics online from home or anywhere with an internet connection.
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Shop store.harbordive.com or register online for your PADI® scuba lessons, classes and courses.
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Local and sponsored events -- get information about events in the San Francisco Bay Area and at Harbor Dive Center.
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Live facebook feed -- get current news from HDC posted on facebook without having to log in (great source for those who do not have a facebook account).
Stand up paddleboards (SUP) -- get information about Body Glove SUP's by Focus Brands.
live the adventure
video: Diving and Surfing Fiji
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The Way the World 
Learns to Dive®
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Your adventure starts with your 1st
scuba course with Harbor Dive Center!
AB Biller Power Heads

These A.B. Biller designed and precision-engineered Power Head units are the most advanced and reliable products of its kind available.  The .38, .357 as well as the .44 caliber Power Heads are manufactured of high-grade stainless steel with newly designed firing mechanism and safety.  Power Heads are available with 6mm and 5/16″ thread.  They have been designed and manufactured according to the regulations set forth under the NATIONAL FIREARMS ACT.

FEDERAL LAW REQUIRES that the firing pin be 26″ long.  Any Power Head (fish popper) NOT CONFORMING is considered CONTRABAND and is subject to confiscation by the Bureau of Alcohol, Tobacco and Firearms, U.S. Treasury Department — BATF.

AB Biller Power Heads
H 44 - Power Head, .44 caliber
H 38 - Power Head, .38 caliber
H 357 - Power Head, .357 caliber
All A.B. Biller Power Heads come with a stainless steel cable
attaching the barrel to the shaft to prevent the lost
of the barrel while re-loading underwater.

OPERATIONS: The A.B. Biller Power Head has been designed for use and protection underwater.  The device is not classified as a firearm but must be treated as such.

The knurled safety nut must be tightened against the Power Head body at all times and only loosened by three turns immediately before use.  To load the Power Head the barrel must be unscrewed from the body and the barrel replaced finger tight.  During loading and unloading special attention must be paid to insure that the safety nut is tight.

NOTE: It is recommended that the Power Head be used with BLANKS, since it is not the projectile, but the concussion of the explosion that kills the fish.

MAINTENANCE: The A.B. Biller Power Head is manufactured from high-grade stainless steel and requires little maintenance.  After each use the Power Head should be rinsed with fresh water and lubricated with a very small amount of silicone.

Power head speargun mount
MOUNTING OPTIONS: Threaded into a pole spear (picture above)
or mounted on a speargun (picture below).
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