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What’s New
Sale
- Monthly sale!
- Clearance
Air Rifles
- PCP
  - .177
  - .20
  - .22
  - .25
  - Big bore
- Spring Action
  - BB
  - .177
  - .20
  - .22
  - .25
- Nitro Piston & Gas Ram
- Pneumatic & Multi-pump
- CO2 Rifles
- Under 500FPS (No PAL required)
- Air Archery
- By Brand
  - Air Arms
  - Airforce
  - ASG
  - Barra
  - Beeman
  - Benjamin Sheridan
  - Cometa
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  - Gamo
  - HK
  - Hämmerli
  - Hatsan
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- Pre-owned & Consignment
- Big bore
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Air Pistols
- CO2 Blowback
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- By Brand
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  - Cometa
  - Crosman
  - CZ
  - Daisy
  - Dan Wesson
  - Diana
  - Gamo
  - Gletcher
  - HK
  - Hellraiser
  - Legends
  - Magnum Research
  - Remington
  - Ruger
  - SIG Sauer
  - Springfield
  - Smith & Wesson
  - Steyr
  - STI
  - Swiss Arms
  - Tanfoglio
  - Umarex
  - Walther
  - Webley and Scott
  - Weihrauch
- Competition
Firearms
- Rimfire Rifles
- Centerfire Rifles
- Shotguns
- By Brand
  - Blueline
  - Charles Daly
  - Chiappa
  - Diana
  - GSG
  - Hunt Group
  - ISSC
  - Keystone
  - Kodiak
  - Mauser
  - Norinco
  - Ruger
  - Surplus
  - Webley & Scott
  - Weihrauch
Ammo & CO2
- Pellets
  - .177
  - .20
  - .22
  - .25
  - Big Bore
- Slugs
  - .177
  - .22
  - .25
  - Big Bore
- BBs
- Darts
- Arrows/Bolts
- Air Shotshells
- CO2
- Pellet Accessories
- By Brand
  - Air Arms
  - Air Venturi
  - ASG
  - Beeman
  - Benjamin & Sheridan
  - Copperhead
  - Cometa
  - Crosman
  - Daisy
  - Diana
  - FX
  - Gamo
  - Geco
  - H&N
  - Hatsan
  - Hornady
  - JSB
  - JTS
  - Marksman
  - Norica
  - Norma
  - Peak
  - Qiang Yuan
  - Rifle
  - Ruger
  - RWS
  - SIG Sauer
  - Umarex
  - Wildman
  - Winchester
  - ZAN
Optics
- Scopes
- Dot Sights
- Scope Mounts
- Lasers & Flashlights
- Sights
- Spotting Scopes, Trail Cams, Binoculars & Range Finders
- Optic Accessories
- By Brand
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  - B Square
  - Centerpoint
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  - Diana
  - Falke
  - GSG
  - Hawke
  - Leapers
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  - Simmons
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  - Walther
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  - Western Justice
Accessories
Parts
- Barrels
- Grips
- Mainsprings
- Stocks
- Seal Kits
- Air Arms
- Airforce
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  - 392/397
  - Classic
  - Discovery
  - Legacy
  - Marauder/Armada
  - Marauder Pistol
  - Maximus
  - Trail NP2
  - Trail pistol
  - Wildfire
- Beretta Parts
  - 92FS
  - CX4
  - Elite II
- Browning
- BSA
  - 240 Magnum
  - Airsporter
  - Cadet
  - Comet
  - Goldstar
  - Hornet
  - Lightning
  - Mercury
  - Meteor
  - Polaris
  - R10
  - Scorpion/Buccaneer/Shadow/Trooper
  - Spitfire
  - STD & Light pattern
  - Supersport
  - Superstar
  - Ultra
  - BSA PCP
- BSF
- Colt Parts
  - 1911A1
  - Peacemaker
- Cometa
  - 100
  - 220
  - 300
  - 400-Fenix
  - 400-Fusion
  - Indian
  - Lynx
  - Orion
- Crosman
  - 36
  - 38
  - 44
  - 45
  - 66
  - 70
  - 73
  - 99
  - 100/101
  - 102/104
  - 105/106
  - 107/108
  - 109/110
  - 111/112
  - 113/114
  - 115/116
  - 118
  - 120
  - 121CG/122CG
  - 130/137
  - 140/147
  - 150/157
  - 160/167
  - 166 Hahn
  - 180/187
  - 262/262Y
  - 300/V300
  - 338
  - 350/V350
  - 357/Vigilante/Triple Threat
  - 400
  - 451
  - 454
  - 455
  - 500
  - 600/677
  - 622
  - 700/707
  - 760/761
  - 766
  - 781
  - 782
  - 788
  - 790
  - 1008/1088/1710/2210
  - 1077
  - 1100
  - 1300
  - 1322/1377
  - 1389
  - 1400
  - 1600
  - 1760/2260
  - 1861 Shilo
  - 2009S
  - 2100
  - 2200
  - 2240/1740/2250
  - 2289
  - 2300T
  - 3500
  - Air-17
  - AS2250XT
  - Auto Air II
  - C11/P10
  - CB40
  - CH2000
  - CK92
  - M1
  - M4-177
  - MKI/MKII
  - Nightstalker
  - Nitro Venom
  - Optimus
  - Phantom
  - PRO77
  - Quest
  - SA6
  - SSP250
  - T4
  - Z77
- Custom Air Seals
- Daisy
- Daystate
- Diana
  - 20
  - 21
  - 24
  - 26
  - 28
  - 31
  - 34
  - 36
  - 38
  - 45
  - 46
  - 48/52
  - 54
  - 56TH
  - 60
  - 70
  - 72
  - 240
  - 280
  - 300R
  - 350
  - 430
  - 460
  - 470TH
  - AM03
  - LP8
  - K98
- Falke
- FAS
- FWB
- Gamo
- Haenel
- Hammerli
  - 490 Express
  - AP20/AP20 Pro
  - AR-20
  - Pneuma
  - Razor
- Hatsan
- Hill
- HY-Score
- Industry brand
- Lucznik
- Norica
- Pardini
- Quackenbuch
- Relum
- Ruger
- SAR (Shinbishi Air Rifle)
- Slavia
- Smith & Wesson
- SMK
- Tau
- Tinbum Tuning
- Titan
- Umarex
- Vortek
- Walther
  - 1250 Dominator
  - CP88
  - CP99
  - CP99 Compact
  - CP Sport
  - Lever Action
  - LG55
  - LG300
  - LGR
  - LGV/LGU
  - LP2/LP3/LP53
  - LP400
  - Maximathor
  - Parrus/Terrus
  - PPK/S
  - Rotek
  - Talon
- Webley
  - Air Wolf
  - Beeman C1
  - Eclipse
  - Excel
  - Falcon
  - Hawk
  - Hurricane
  - Junior
  - Longbow
  - MKI Pistol
  - MkIII Rifle
  - Nemesis
  - Omega
  - Osprey
  - Patriot
  - Premier
  - Senior
  - Stingray
  - Tempest
  - Tomahawk
  - Tracker
  - Typhoon
  - Victor
  - Viscount
  - Vulcan
- Weihrauch
  - HW30
  - HW35
  - HW40
  - HW44
  - HW45
  - HW50
  - HW55
  - HW57
  - HW70
  - HW75
  - Hw77
  - HW80
  - Hw85
  - Hw90
  - Hw95
  - HW97
  - HW98
  - HW100
  - HW110
Pre-owned & Consignment
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What’s New

Sale

Monthly sale!
Clearance

Air Rifles

PCP
- .177
- .20
- .22
- .25
- Big bore
Spring Action
- BB
- .177
- .20
- .22
- .25
Nitro Piston & Gas Ram
Pneumatic & Multi-pump
CO2 Rifles
Under 500FPS (No PAL required)
Air Archery
By Brand
- Air Arms
- Airforce
- ASG
- Barra
- Beeman
- Benjamin Sheridan
- Cometa
- Crosman
- CZ
- Daisy
- Diana
- Gamo
- HK
- Hämmerli
- Hatsan
- Hellraiser
- Legends
- Pardus
- Remington
- Ruger
- Seneca
- SIG Sauer
- Springfield
- Umarex
- Walther
- Weihrauch
- Winchester
- Western Justice
Pre-owned & Consignment
Big bore
Competition
Youth

Air Pistols

CO2 Blowback
CO2 Non-blowback
CO2 Revolvers
PCP
Spring/Pneumatic
By Brand
- Air Venturi
- ASG
- Barra
- Bersa
- Beretta
- Black Ops
- Browning
- Chiappa
- Colt
- Cometa
- Crosman
- CZ
- Daisy
- Dan Wesson
- Diana
- Gamo
- Gletcher
- HK
- Hellraiser
- Legends
- Magnum Research
- Remington
- Ruger
- SIG Sauer
- Springfield
- Smith & Wesson
- Steyr
- STI
- Swiss Arms
- Tanfoglio
- Umarex
- Walther
- Webley and Scott
- Weihrauch
Competition

Firearms

Rimfire Rifles
Centerfire Rifles
Shotguns
By Brand
- Blueline
- Charles Daly
- Chiappa
- Diana
- GSG
- Hunt Group
- ISSC
- Keystone
- Kodiak
- Mauser
- Norinco
- Ruger
- Surplus
- Webley & Scott
- Weihrauch

Ammo & CO2

Pellets
- .177
- .20
- .22
- .25
- Big Bore
Slugs
- .177
- .22
- .25
- Big Bore
BBs
Darts
Arrows/Bolts
Air Shotshells
CO2
Pellet Accessories
By Brand
- Air Arms
- Air Venturi
- ASG
- Beeman
- Benjamin & Sheridan
- Copperhead
- Cometa
- Crosman
- Daisy
- Diana
- FX
- Gamo
- Geco
- H&N
- Hatsan
- Hornady
- JSB
- JTS
- Marksman
- Norica
- Norma
- Peak
- Qiang Yuan
- Rifle
- Ruger
- RWS
- SIG Sauer
- Umarex
- Wildman
- Winchester
- ZAN

Optics

Scopes
Dot Sights
Scope Mounts
Lasers & Flashlights
Sights
Spotting Scopes, Trail Cams, Binoculars & Range Finders
Optic Accessories
By Brand
- Axeon
- BKL
- Bushnell
- BSA
- B Square
- Centerpoint
- Crosman
- Diana
- Falke
- GSG
- Hawke
- Leapers
- Nikon
- RWS
- Simmons
- Sports match
- Sun Optics
- Tasco
- Walther
- Weihrauch
- Western Justice

Accessories

Apparel & Swag
Bipods
Cases/Boxes
Chronographs
Magazines
Maintenance & Cleaning
Misc Accessories
PCP Accessories
Slings & Sling Mounts
Targets

Parts

Barrels
Grips
Mainsprings
Stocks
Seal Kits
Air Arms
Airforce
Anschutz
Baikal
Benjamin & Sheridan
- 392/397
- Classic
- Discovery
- Legacy
- Marauder/Armada
- Marauder Pistol
- Maximus
- Trail NP2
- Trail pistol
- Wildfire
Beretta Parts
- 92FS
- CX4
- Elite II
Browning
BSA
- 240 Magnum
- Airsporter
- Cadet
- Comet
- Goldstar
- Hornet
- Lightning
- Mercury
- Meteor
- Polaris
- R10
- Scorpion/Buccaneer/Shadow/Trooper
- Spitfire
- STD & Light pattern
- Supersport
- Superstar
- Ultra
- BSA PCP
BSF
Colt Parts
- 1911A1
- Peacemaker
Cometa
- 100
- 220
- 300
- 400-Fenix
- 400-Fusion
- Indian
- Lynx
- Orion
Crosman
- 36
- 38
- 44
- 45
- 66
- 70
- 73
- 99
- 100/101
- 102/104
- 105/106
- 107/108
- 109/110
- 111/112
- 113/114
- 115/116
- 118
- 120
- 121CG/122CG
- 130/137
- 140/147
- 150/157
- 160/167
- 166 Hahn
- 180/187
- 262/262Y
- 300/V300
- 338
- 350/V350
- 357/Vigilante/Triple Threat
- 400
- 451
- 454
- 455
- 500
- 600/677
- 622
- 700/707
- 760/761
- 766
- 781
- 782
- 788
- 790
- 1008/1088/1710/2210
- 1077
- 1100
- 1300
- 1322/1377
- 1389
- 1400
- 1600
- 1760/2260
- 1861 Shilo
- 2009S
- 2100
- 2200
- 2240/1740/2250
- 2289
- 2300T
- 3500
- Air-17
- AS2250XT
- Auto Air II
- C11/P10
- CB40
- CH2000
- CK92
- M1
- M4-177
- MKI/MKII
- Nightstalker
- Nitro Venom
- Optimus
- Phantom
- PRO77
- Quest
- SA6
- SSP250
- T4
- Z77
Custom Air Seals
Daisy
Daystate
Diana
- 20
- 21
- 24
- 26
- 28
- 31
- 34
- 36
- 38
- 45
- 46
- 48/52
- 54
- 56TH
- 60
- 70
- 72
- 240
- 280
- 300R
- 350
- 430
- 460
- 470TH
- AM03
- LP8
- K98
Falke
FAS
FWB
Gamo
Haenel
Hammerli
- 490 Express
- AP20/AP20 Pro
- AR-20
- Pneuma
- Razor
Hatsan
Hill
HY-Score
Industry brand
Lucznik
Norica
Pardini
Quackenbuch
Relum
Ruger
SAR (Shinbishi Air Rifle)
Slavia
Smith & Wesson
SMK
Tau
Tinbum Tuning
Titan
Umarex
Vortek
Walther
- 1250 Dominator
- CP88
- CP99
- CP99 Compact
- CP Sport
- Lever Action
- LG55
- LG300
- LGR
- LGV/LGU
- LP2/LP3/LP53
- LP400
- Maximathor
- Parrus/Terrus
- PPK/S
- Rotek
- Talon
Webley
- Air Wolf
- Beeman C1
- Eclipse
- Excel
- Falcon
- Hawk
- Hurricane
- Junior
- Longbow
- MKI Pistol
- MkIII Rifle
- Nemesis
- Omega
- Osprey
- Patriot
- Premier
- Senior
- Stingray
- Tempest
- Tomahawk
- Tracker
- Typhoon
- Victor
- Viscount
- Vulcan
Weihrauch
- HW30
- HW35
- HW40
- HW44
- HW45
- HW50
- HW55
- HW57
- HW70
- HW75
- Hw77
- HW80
- Hw85
- Hw90
- Hw95
- HW97
- HW98
- HW100
- HW110

Pre-owned & Consignment

Pre-owned Rifles
Pre-owned Pistols
Pre-owned Firearms
Pre-owned Optics
Pre-owned Ammo & CO2
Pre-owned Accessories
Pre-owned Reloading Supplies

Warranty & Repairs

Repair Rates
Warranty Contact Info

Monthly sale!

Clearance

PCP

.177
.20
.22
.25
Big bore

Spring Action

BB
.177
.20
.22
.25

Nitro Piston & Gas Ram

Pneumatic & Multi-pump

CO2 Rifles

Under 500FPS (No PAL required)

Air Archery

By Brand

Air Arms
Airforce
ASG
Barra
Beeman
Benjamin Sheridan
Cometa
Crosman
CZ
Daisy
Diana
Gamo
HK
Hämmerli
Hatsan
Hellraiser
Legends
Pardus
Remington
Ruger
Seneca
SIG Sauer
Springfield
Umarex
Walther
Weihrauch
Winchester
Western Justice

Pre-owned & Consignment

Big bore

Competition

Youth

CO2 Blowback

CO2 Non-blowback

CO2 Revolvers

PCP

Spring/Pneumatic

By Brand

Air Venturi
ASG
Barra
Bersa
Beretta
Black Ops
Browning
Chiappa
Colt
Cometa
Crosman
CZ
Daisy
Dan Wesson
Diana
Gamo
Gletcher
HK
Hellraiser
Legends
Magnum Research
Remington
Ruger
SIG Sauer
Springfield
Smith & Wesson
Steyr
STI
Swiss Arms
Tanfoglio
Umarex
Walther
Webley and Scott
Weihrauch

Competition

Rimfire Rifles

Centerfire Rifles

Shotguns

By Brand

Blueline
Charles Daly
Chiappa
Diana
GSG
Hunt Group
ISSC
Keystone
Kodiak
Mauser
Norinco
Ruger
Surplus
Webley & Scott
Weihrauch

Pellets

.177
.20
.22
.25
Big Bore

Slugs

.177
.22
.25
Big Bore

BBs

Darts

Arrows/Bolts

Air Shotshells

CO2

Pellet Accessories

By Brand

Air Arms
Air Venturi
ASG
Beeman
Benjamin & Sheridan
Copperhead
Cometa
Crosman
Daisy
Diana
FX
Gamo
Geco
H&N
Hatsan
Hornady
JSB
JTS
Marksman
Norica
Norma
Peak
Qiang Yuan
Rifle
Ruger
RWS
SIG Sauer
Umarex
Wildman
Winchester
ZAN

Scopes

Dot Sights

Scope Mounts

Lasers & Flashlights

Sights

Spotting Scopes, Trail Cams, Binoculars & Range Finders

Optic Accessories

By Brand

Axeon
BKL
Bushnell
BSA
B Square
Centerpoint
Crosman
Diana
Falke
GSG
Hawke
Leapers
Nikon
RWS
Simmons
Sports match
Sun Optics
Tasco
Walther
Weihrauch
Western Justice

Apparel & Swag

Bipods

Cases/Boxes

Chronographs

Magazines

Maintenance & Cleaning

Misc Accessories

PCP Accessories

Slings & Sling Mounts

Targets

Barrels

Grips

Mainsprings

Stocks

Seal Kits

Air Arms

Airforce

Anschutz

Baikal

Benjamin & Sheridan

392/397
Classic
Discovery
Legacy
Marauder/Armada
Marauder Pistol
Maximus
Trail NP2
Trail pistol
Wildfire

Beretta Parts

92FS
CX4
Elite II

Browning

BSA

240 Magnum
Airsporter
Cadet
Comet
Goldstar
Hornet
Lightning
Mercury
Meteor
Polaris
R10
Scorpion/Buccaneer/Shadow/Trooper
Spitfire
STD & Light pattern
Supersport
Superstar
Ultra
BSA PCP

BSF

Colt Parts

1911A1
Peacemaker

Cometa

100
220
300
400-Fenix
400-Fusion
Indian
Lynx
Orion

Crosman

36
38
44
45
66
70
73
99
100/101
102/104
105/106
107/108
109/110
111/112
113/114
115/116
118
120
121CG/122CG
130/137
140/147
150/157
160/167
166 Hahn
180/187
262/262Y
300/V300
338
350/V350
357/Vigilante/Triple Threat
400
451
454
455
500
600/677
622
700/707
760/761
766
781
782
788
790
1008/1088/1710/2210
1077
1100
1300
1322/1377
1389
1400
1600
1760/2260
1861 Shilo
2009S
2100
2200
2240/1740/2250
2289
2300T
3500
Air-17
AS2250XT
Auto Air II
C11/P10
CB40
CH2000
CK92
M1
M4-177
MKI/MKII
Nightstalker
Nitro Venom
Optimus
Phantom
PRO77
Quest
SA6
SSP250
T4
Z77

Custom Air Seals

Daisy

4XX Roto Clip rifles
617/622
717/722/747/777
917/922
1938 (Red Ryder)
2001/2002
2003

Daystate

Diana

20
21
24
26
28
31
34
36
38
45
46
48/52
54
56TH
60
70
72
240
280
300R
350
430
460
470TH
AM03
LP8
K98

Falke

FAS

FWB

Gamo

Haenel

Hammerli

490 Express
AP20/AP20 Pro
AR-20
Pneuma
Razor

Hatsan

Hill

HY-Score

Industry brand

Lucznik

Norica

Pardini

Quackenbuch

Relum

Ruger

SAR (Shinbishi Air Rifle)

Slavia

Smith & Wesson

SMK

Tau

Tinbum Tuning

Titan

Umarex

Vortek

Walther

1250 Dominator
CP88
CP99
CP99 Compact
CP Sport
Lever Action
LG55
LG300
LGR
LGV/LGU
LP2/LP3/LP53
LP400
Maximathor
Parrus/Terrus
PPK/S
Rotek
Talon

Webley

Air Wolf
Beeman C1
Eclipse
Excel
Falcon
Hawk
Hurricane
Junior
Longbow
MKI Pistol
MkIII Rifle
Nemesis
Omega
Osprey
Patriot
Premier
Senior
Stingray
Tempest
Tomahawk
Tracker
Typhoon
Victor
Viscount
Vulcan

Weihrauch

HW30
HW35
HW40
HW44
HW45
HW50
HW55
HW57
HW70
HW75
Hw77
HW80
Hw85
Hw90
Hw95
HW97
HW98
HW100
HW110

Pre-owned Rifles

Pre-owned Pistols

Pre-owned Firearms

Pre-owned Optics

Pre-owned Ammo & CO2

Pre-owned Accessories

Pre-owned Reloading Supplies

Repair Rates

Warranty Contact Info

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Home / Optimus / B19-00-4B Mainspring

B19-00-4B Mainspring

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B19-00-4B 495FPS mainspring

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Vortek 25mm dovetail piston seal (VTK-MA-017) $34.99

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From the collecting of antique airguns, to the advocating of marksmanship as a sport that the entire family really can enjoy safely, we at D&L Airgun understand the pleasure that the right equipment and service can provide. We take pride in offering our customers the best possible service in the airgun market.