Speargun Shaft Charts

Before selecting the proper spear length, you must first know which type of shaft your gun accepts (Euro cut or USA cut). “Euro cut” spears are built for “Euro Trigger Mechanisms” and “USA cut” spears are build for “USA Trigger Mechanisms”.

DON'T use a Euro cut spear in a USA trigger mechanism.
DON'T use a USA cut spear in a Euro trigger mechanism.

Railgun (Euro Cut) Spear with Flopper:
When figuring out the proper spear (with flopper) length for a railgun, it is quite easy. All you do is add 40 cm to the length of the gun barrel. For example, a 100cm railgun, which has a 100cm barrel, would require a 140cm spear.

Railgun (Euro Cut) Spear with Threaded Tip (for use w/ slip tip or screw on) tip:
In determining the proper spear (with threaded tip) length for a railgun, you again, add 40 cm to the length of the barrel of the gun. However, you then deduct 10 cm from that number to account for the length of the slip tip and adapter or the screw on tip that you will be using. For example, a 100 cm gun would require a spear that is 140cm long, minus 10 cm = 130 cm threaded spear.

Wood or Hybrid (USA Cut) Spear with Flopper:
In determining the spear length for USA Mechanism Gun (wood or hybrid), the length of the barrel is not used. Instead, the distance between the back of the trigger mechanism to the front of the gun is used for calculating spear length. This is because with wood guns and hybrids, some have longer “butts” (distance between back of trigger mechanism to the back of the gun) than others.

There is no universal standard for selecting the proper spear length for a USA Mechanism Speargun (hybrid gun or wood gun). Some guys like a short overhang of around 10 inches, while others like a longer overhang of up to 15”. The average appears to be around 12” of overhang.

To determine the suggested length of spear for your USA mechanism gun:

  • Step #1: Determine the point where the back of the spear is located when it is engaged in the trigger mechanism.
  • Step #2: Measure from this point to the front of the gun.
  • Step #3: Then add approximately 12 inches to the previously obtained measurement. This will give you a suggested spear length with a 12 inch overhang. If you want a slightly shorter overhang, you can add less than 12 inches. If you want a longer overhang, you can add more then 12 inches.

Wood or Hybrid (USA Cut) Spear with Threaded Tip (for use w/ slip tips and screw on tips):
In selecting the proper length of a threaded spear (for slip tips), you will add only 6 inches of overhang instead of 12 inches to get a 12 inch overhang. This is because the slip tip (with the adapter) is normally around 6 inches long. So, the threaded spears are about 6 inches shorter than flopper spears. Example: A 58” threaded spear with a 6” slip tip (including adapter) makes for a 64” spear.

 

Spearmaster (KJ) Shafts [Euro / Tabbed / Hawaiian Flopper]
(can be used for any Euro gun)

Gun Stock Length Shaft Length (cm) Shaft Width Options (mm)
140cm 180 7.0 / 7.5 / 8.0
130cm 170 7.0 / 7.5 / 8.0
120cm 160 7.0 / 7.5 / 8.0
110cm 150 7.0 / 7.5 / 8.0
100cm 140 7.0 / 7.5 / 8.0
90cm 130 7.0 / 7.5 / 8.0
80cm 120 7.0 / 7.5 / 8.0
70cm 110 7.0 / 7.5 / 8.0
  100 7.0 / 7.5 / 8.
  90 7.0 / 7.5 / 8.0

 

Spearmaster (KJ) Shafts [Euro / Tabbed / Threaded]
(can be used for any Euro gun)

Gun Stock Length Shaft Length (cm) Shaft Widths (mm)
 150 180 8.0
 140 170 8.0
 130 160 8.0
 120 150 8.0
 110 140 8.0
 100 130 8.0
 90 120 8.0
 80 110 8.0
 70 100 8.0
  90 8.0

 

Rob Allen Shafts [Euro / Notched / Hawaiian Flopper]

Gun Model Length Shaft Length (cm) Shaft Width Options (mm)
700 110 6.6 / 7.0 / 7.5
800 120 6.6 / 7.0 / 7.5
900 130 6.6 / 7.0 / 7.5
1000 140 6.6 / 7.0 / 7.5
1100 150 6.6 / 7.0 / 7.5
1200 160 6.6 / 7.0 / 7.5
1300 170 6.6 / 7.0 / 7.5
1400 180 6.6 / 7.0 / 7.5
1500 190 6.6 / 7.0 / 7.5
1600 200 6.6 / 7.0 / 7.5

 

Riffe Shafts

Riffe Charts

 

AB Biller Shafts

 AB Biller Shaft Charts

 

 

Standard fatback series

Model

UPC

SHAFT

BAND

42SFAT

600137649235

40” 5/16

(3) 22”

45SFAT

600137649242

44” 5/16

(3) 24”

48SFAT

600137649259

48” 5/16

(3) 24”

52SFAT

600137649266

52” 5/16

(3) 26”

54SFAT

600137649273

55” 5/16

(3) 28”

57SFAT

600150926528

60” 5/16

(3) 30”

 

Mid plus fatback series 

Model

UPC

SHAFT

BAND

45MPF

600137649280

48” 5/16

(3) 24”

48MPF

600137649297

52” 5/16

(3) 26”

52MPF

600137649303

55” 5/16

(3) 28”

 

Shortie series

Model

UPC

SHAFT

BAND

28SHT

600137649310

30” 5/16

(2) 18”

34SHT

600137649327

34” 5/16

(2) 22”

38SHT

600137649334

40” 5/16

(2) 24”

38MPS

600137649341

44” 5/16

(2) 26”

 

Euro series 

Model

UPC

SHAFT

BAND

EUR90

600137649396

52” 9/32

(2) 24”

EUR100

600137649402

55” 9/32

(2) 26”

EUR110

600137649419

60” 9/32

(2) 28”

EUR120

600137649426

64” 9/32

(2) 30”

EUR90LS

600137649433

52” 9/32

(2) 24”

EUR100LS

600137649440

55” 9/32

(2) 26”

EUR110LS

600137649457

60” 9/32

(2) 28”

EUR120LS

600137649457

64” 9/32

(2) 30”

 

Big body series

Model

UPC

SHAFT

BAND

54MPBB

600137649471

60” 5/16

(3) 30”

57MPBB

600137649488

64” 5/16

(3) 32”

60MPBB

600137649495

68” 5/16

(3) 32”

130EUBB

600137649501

68” 19/64

(2)32”

60STBB

600137649518

60” 5/16

(3) 30”

 

Bluewater series

Model

UPC

SHAFT

BAND

64STBW

600137649525

64” 5/16

(4) 32”

64MPBW

600137649532

68” 5/16T

(4)34”

68STBW

600137649549

68” 5/16

(4) 34”

68MPBW

600137649556

68” 5/16T

(4)36”

140EUBW

600137649563

68” 5/16T

(4) 34”

 

Roller series (Reef)

Model

UPC

SHAFT

BAND

34STRL

600137649570

34” 5/16

28R+20”

44STRL

600137649587

44”5/16

30R+24”

48STRL

600137649594

48”5/16

36R+26”

52STRL

600137649600

52”5/16

42R+28”

34MPRL

600137649617

38” 5/16

24R+22”

44MPRL

600137649624

48” 5/16

36R+26”

48MPRL

600137649631

52” 5/16

38R+28”

52MPRL

600137649648

55” 5/16

40R+30”

90EURL

600137649655

52” 9/32

36R+26”

100EURL

600137649662

55” 9/32

45R+28”

110EURL

600137649679

60” 9/32

55R+30”

 

 Twin Roller series (Bluewater)

Model

UPC

SHAFT

BAND

58MPTR

600137649686

60” 11/32T

56R+(2)26”

62MPTR

600137649693

64” 11/32T

64R+(2)30”

125EUTR

600137649709

64” 11/32T

66R+(2)32”

135EUTR

600137649716

68” 11/32T

69R+(2)35”

 

JBL Shafts

JBL Speargun Shaft Chart

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