Name: iDryfire Laser Short Flash (LSF) Boresight Cartridge (RED)
Brand: iDryfire
SKU: LSR-INS-RED-40SW
Price: 54.99 USD
Availability: InStock

iDryfire Laser Short Flash (LSF) Boresight Cartridge (RED)

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6-month warranty · Warranty and returns

🔴 iDryfire Laser Short Flash (LSF) Boresight Cartridge

THIS CARTRIDGE WON'T WORK WITH DRYFIREMAG

🔥IF YOU'RE LOOKING FOR A DRY FIRE CARTRIDGE COMPATIBLE WITH ALL DRY FIRE TRIGGER RESET MAGAZINES:

Smartest iDryfire Laser Cartridge for DryFireMag®

Designed specifically for use with DryFireMag® systems to ensure reliable laser activation during dry fire training.

The iDryfire Laser Short Flash (LSF) Boresight Cartridge is a precision-engineered laser tool designed specifically for safe, accurate, and cost-effective dry-fire training without live ammunition.

This is not a standard dry fire cartridge. The LSF is a dedicated boresight laser insert designed for compatibility with digital and reactive laser targets, aligning the Red Dot, and providing instant and reliable visual feedback with every trigger press.

🔧 Key Features

Laser Short Flash Technology
Emits a precise 100+ millisecond laser pulse—ideal for training, sight alignment.
Compatible with iDryfire Targets
Designed to work with iDryfire Digital and Reactive Laser Targets (excluding systems designed for other laser ammo brands). Receive instant visual and audio feedback with each shot. Won't work with reactive targets from LaserAmmo
Multi-Firearm Compatibility
Use with:
• Semi-automatic pistols
• Bolt-action rifles
• Revolvers
Easy and Safe to Use
Insert directly into the chamber. The firing pin activates the laser flash with each trigger press—no need for live ammo.
Built for Durability
• Solid brass construction
• Hardened rubber primer (protects firing pin)
• Replaceable end cap
• Two O-rings for chamber alignment
• Rimless case (except .38 SPL / .357 MAG / .45 Long Colt)
• Class 3a red laser (eye-safe, no protection required)

✅ Why Choose the iDryfire LSF Boresight Cartridge?

Not a standard dry fire cartridge — this is an advanced, purpose-built Laser Short Flash Boresight Tool
Practice with your actual firearm, safely and affordably
No range time or ammunition needed
Designed for precision training and sight calibration
Trusted by instructors, professionals, and competitive shooters

📦 What's Included:

1× iDryfire Laser Short Flash (LSF) Boresight Cartridge
Compatible battery set: 3× LR626 / AG4
(Optional) .22LR Dual-Purpose Laser Insert – [Click here to learn more]

⚠️ Important Notes:

This is not a dry fire cartridge – do not use generic terms. Always refer to it as the Laser Short Flash (LSF) Boresight Cartridge
Not intended for long-distance rifle scope boresighting
Not compatible with LaserAmmo-exclusive targets
May not work with Ruger SR 45
Design may vary slightly for .38 SPL / .357 MAG / .45 Long Colt models

Don’t Forget Your iDryfire® Lubricant!

Keep your iDryfire® cartridges operating smoothly with iDryfire® O-Ring Lubricant. Regular lubrication helps protect O-rings, reduce friction, and prevent premature wear during repeated dry-fire training.

One Drop. Maximum Protection.

Add iDryfire® O-Ring Lubricant to your order →

🆚 iDryfire (LSF) Boresight Cartridge vs. Cheap Chinese Knockoffs [Click here to learn more]

🔫 What Guns Work with Dry Fire Laser Cartridges? [Click here to learn more]

SHIPPING INFORMATION FOR THE DOMESTIC ORDERS

All orders are shipped with tracking numbers and are insured against loss, damage, or missing contents.

EXPEDITED orders will be shipped the next business day.

USPS PRIORITY orders will be shipped the next business day.

REGULAR orders will take 2-5 Business Days to ship.

SHIPPING INFORMATION FOR THE INTERNATIONAL ORDERS

Priority Mail International shipments are insured against loss, damage, or missing contents.

Warranty:

6-Month Limited Warranty against defects in workmanship and materials
Non-transferable; applies to the original purchaser only

Order Cancellation Policy:

A 5% cancellation fee applies to all orders canceled after payment has been processed. This fee covers payment processing and administrative costs.

Please read the product description carefully before placing your order. If you have any questions, feel free to contact us - we’re here to help.

Returns Policy

Before placing an order, please ensure you are familiar with Airsoft Gas Pistol technology and its features. Please verify the compatibility of IR and RED systems with your selected targets. Ensuring compatibility beforehand helps prevent issues and ensures a smooth experience. If you have any questions, feel free to contact us for guidance.

Custom Orders:
All IR/RED laser modules are custom-made to order—you have 24 hours to cancel your order without penalty. After 24 hours, a 20% cancellation fee will apply.
Condition for Returns:
All returned products must be in original packaging and in resalable condition to qualify for a refund or exchange.
Compatibility:
If you are unsure about compatibility with other IR Target Systems, please contact us before purchasing to ensure the product meets your needs.

Click HERE for battery installation instructions.

The following warranty exclusion applies to the replaceable o-rings:

The replaceable o-rings for the laser cartridge cap should perform as designed for 1,000 insert-remove cycles. The lifespan of the O-ring may vary depending on the quality of firearm maintenance. Clean the firearm barrel with a bronze bore brush and lubricate with gun lubricant mandatory before inserting the cartridge and each time after the firearm is used to fire live ammo. The used o-ring will not be covered by warranty, and replacement may be purchased online.

The following warranty exclusion applies to the replaceable laser cartridge cap: The cap should perform as designed for 1,000-2,500 firing pin strikes. The life and performance of the caps may vary depending on the type of firearm used for training practice. The used cartridge caps will not be covered by warranty, and replacement may be purchased online.

$54.99

5 stars: 27 (87%)
4 stars: 3 (10%)
3 stars: 1 (3%)
2 stars: 0 (0%)
1 star: 0 (0%)

Great Training Cartridge

This is a great little tool to practice my dry fire training with any of my 40 s&w pistols, mostly used for my 1911 & 2011 pistols for dry fire practice when I am not at the range.

See Youtube vide with this cartridge and the iDryfire Clip-N-Shoot:
https://youtu.be/OQUjjDCZLjA

Great product

Works as described.

Thank you for leaving a review! We're thrilled to hear that our iDryfire Laser Short Flash Boresight Cartridge is working for you as described. That's great news! We appreciate your support and hope you continue to enjoy our product. Happy practicing!

.45 ACP cartridge

I tested it on my 1911 an it works great.

All good works just as it should

Great product

This is my second purchase from IDryfire. The laser cartridge is reliable, accurate and functions very well. I’m very happy with everything in have received from IDryfire.

Mostly works...

I tried out my unit first with my 40. Worked great, loved the response and instant feedback. Today tried the 9's. 2 of the 3 did not activate the laser. Though I have reliabily fired from all three, the pin did not register on the firing pad for the 9 laser "bullet". One did do so. The target functions great, the 40 bullet no prob. The 9 not so much.

Dry fire practice made Practical

Excellent tool to work on common shooting problems and it provides immediate feedback on aim

works great

Very Good

Works as advertized

Works as described

The laser cartridge fits my 9mm and shoots off the red laser light when the trigger is pulled. You can also see where the light hits if you miss the target.

What a great option for practicing when you’re limited on time fun activities at the house

Enjoy the practice

Really good practice. It gets a little tiresome to cock the pistol for each shot.

Little 380 red laser

These little boogers are a real bitch to shoot well as the barrel is so short (2" +/-). And training one's wife is nearly impossible without this little helper. To see that 7 yards is a REAL challenge for a head shot with "the little guy" is real help.
Bert

I have been using iDrayfire for years. It is far better system than in use by the local /state la...

I use this in class prior to going to range. The system allows for corrective action and NOT USING LIVE ROUNDS

Dryfire Practice

The Cartridge appears to be of good quality. My only issue with it is it does not stay lit up until the hammer is pulled back, which can make it hard to see as it already went out if you are practicing fast draw.

Review if TTrigger and Laser Cartridge

I am very happy to receive my purchase.. Right now I am testing the TTrigger and 9mm laser cartridge.. I am still looking for a suitable app for Laser cartridge but i think the quality is superb and I feel it would last longer than any of our local products sold on the web.. I am really optimistic to improve my shooting by practicing with these products... the laser cartridge for my Rifle is yet to be tested.. thank you

I’ve not had a chance to fire it yet

Another great product

This is my 4th addition to my system. As always, its well-made and has worked well so far.

iDryfire Laser Cartridge (RED)

iDryfire Laser Cartridge 45 Colt

Great addition for training with my Colt. Great price.

Great

45 Colt practice at home

I bought 2 in the 45 Colt. I use them to practice quick draw with my single action revolver. Lots of fun. The cartridges work great. I would have liked to purchase 6 but they are pricy. Great quality. I use the with the I target cube.

iDryfire Laser Cartridge (RED)

Great customer service

Great product and great customer service

Love it!

It allows me to practice anytime at my home. I practice while watching TV, and shoot at my movable targets during commercials.

Quincy

Great job

iDryfire Laser Cartridge (RED)

Great laser

Very accurate and nice to "shoot" with my real CCW.

Just what I was looking for

I needed a way to dry fire my Henry lever-action .45 LC and also my single-action New Army revolver replica in .45 LC, and this was the perfect solution. Also, iDryfire was the only place I could find this laser cartridge online.