Fixed vs Mechanical Broadheads
How fixed-blade, removable-blade, mechanical and hybrid broadheads differ, why bowhunter education courses recommend mechanicals only for bows of 50 pounds or more, blade counts for large and small game, sharpness, and checking your state's broadhead rules, following bowhunter-ed.com and hunter-ed.com.
The Iowa hunter safety course states the rule plainly: the broadhead is the only arrowhead that may be used for big game, and it must be solidly built and always razor-sharp. This guide compares the main broadhead designs and what decides between them, following the state bowhunter and hunter education courses published on bowhunter-ed.com and hunter-ed.com. Broadhead rules are set by your state; check them first. More on designs on our broadhead types page.
The designs
- Fixed blades: the blades don’t move. The Alaska bowhunter safety course says they’re used by many traditional-style bowhunters and by bowhunters shooting lower draw weights. Hunter-ed.com notes they come in two-, three- and four-blade versions, have fewer moving parts and can be made from one piece, so they’re less likely to malfunction or break.
- Removable blades: the blades can be replaced on the ferrule (the centre part the blades attach to), so a damaged blade doesn’t mean discarding the whole broadhead (Alaska course).
- Mechanical (expandable) blades: the blades sit retracted close to the ferrule in flight and open on impact to expose the cutting edges (Alaska and Iowa courses). Hunter-ed.com notes the retracted blades reduce drag, but there is some potential for failure, such as a blade not opening, especially in harsh conditions.
- Hybrid: hunter-ed.com describes designs that fly and cut like a fixed blade but also open like a mechanical for a wider cut.
Draw weight decides a lot
The Alaska and Iowa courses both recommend mechanical broadheads only with bows rated 50 pounds or more, because most mechanical heads need additional energy to open on penetration, which reduces the arrow’s energy and penetration. With a lower draw weight, that points to a fixed blade. Our arrow kinetic energy calculator helps you estimate what your setup delivers.
Blade count and game size
Hunter-ed.com suggests a fixed blade with four blades, for a deeper cutting channel, for large game such as elk or moose, while a two- or three-blade fixed or mechanical head will do for smaller game.
Before opening day
- Check legality: the Iowa course notes many states set a minimum diameter and number of cutting edges for big-game broadheads, and the Alaska course says always check your state’s current regulations on legal broadheads. Hunter-ed.com likewise advises checking local rules on minimum bow draw weight and on which broadhead types are allowed.
- Keep them razor-sharp (Iowa course).
- Match the arrow system: see our arrow system page, and practise with the broadheads you’ll hunt with; our bow tuning guide covers getting broadheads and field points to fly together.
New to archery hunting? Start with our bowhunting for beginners guide.
Sources
- Alaska Bowhunter Safety Course (bowhunter-ed.com), Types of broadheads. Read 28 October 2026.
- Iowa Hunter Safety Course (hunter-ed.com), Common types of arrowheads: broadheads. Read 28 October 2026.
- Hunter-ed.com, All about broadheads for bowhunting. Read 28 October 2026.
Recommended Gear on Amazon
- Fixed-blade broadheads - browse current options and reviews on Amazon.
- Mechanical broadheads - browse current options and reviews on Amazon.
- Broadhead target - browse current options and reviews on Amazon.
As an Amazon Associate, we earn from qualifying purchases - at no extra cost to you. This helps us keep producing free, in-depth guides.
