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Lakeline LLC

Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat

$17.95
(4 reviews) Write a Review
SKU:
SPR-HLCT-SLV-15RD
Availability:
Ships same business day if ordered before 3pm Central Time, or next business day
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Use your Hellcat PRO 15-round magazine in a standard Hellcat with Lakeline's precision Markforged 3D-printed filler sleeve. Ergonomic and flush fit. Not for WA state. Available at Lakeline LLC, a US Navy Veteran-Owned and Osage Nation Tribe Member-Owned dealer in Houston, TX. No FFL required for this item.


Specifications

Core Specs

SpecValue
BrandLakeline LLC
SKUSPR-HLCT-SLV-15RD
UPC810142072779
CategoryMag Parts & Accessories
Caliber9mm Luger
Country of OriginMade in the USA

Installation

SpecValue
Installation DifficultyEasy.

Legal & Policies

SpecDetail
FFL RequiredNo - this is an accessory/part, not a complete firearm
Return Policy30-day return policy
ShippingFree ground shipping on orders over $150, multiple options at checkout

Product Description

The Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat is designed and manufactured in-house by Lakeline LLC in Houston, TX. Made in the USA. As a US Navy Veteran-Owned and Osage Nation Tribe Member-Owned company, Lakeline builds its own parts and upgrades rather than reselling generic aftermarket components, giving us direct control over fit, finish, and quality.

Backed by Lakeline Lifetime Limited Warranty, this part is built to the same standard we'd want on our own firearms.


Why Buy From Lakeline LLC

Lakeline LLC is a US Navy Veteran-Owned, Osage Nation Tribe Member-Owned company based in Houston, TX.

  • Free ground shipping on orders over $150, multiple options at checkout
  • 30-day return policy

Questions? Email us at info@lakelinellc.com.


Frequently Asked Questions

Does the Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat require an FFL to purchase?

No. This is an accessory/part, not a complete firearm, so it ships without an FFL transfer.

How difficult is it to install the Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat?

Easy.

Does the Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat come with a warranty?

Yes - Lakeline Lifetime Limited Warranty.

What is the return policy on the Springfield Hellcat Filler Sleeve - Fits Hellcat PRO 15-Round Magazine in Hellcat?

30-day return policy

Lakeline Lifetime Limited Warranty

4 Reviews Hide Reviews Show Reviews

  • 5
    Its a great product fits perfectly over my mag I love it

    Posted by Francisco on 31st Jul 2025

    Great job

  • 5
    Good Mag filler sleeve!

    Posted by Tom W on 13th Jul 2025

    I got this for my Hellcat so I could use some of the Hellcat Pro magazines with higher capacity. It fits very well and when it's inserted in the gun is very solid and has a good grip texture. A mile complaint is it's just a tad loose but it still works and functions very well.

  • 5
    Filler sleeve for 15 round hellcat pro magazine for hellcat

    Posted by Rod Justice on 25th Aug 2024

    Works perfectly. Looks really good and everything lines up perfectly. I did have to add a couple of drops of crazy glue so the sleeve didn’t move around while out of the pistol. The sleeve doesn’t move when it is locked into the magwell. Nice product if you want a 15 round mag for your regular hellcat to hold the same amount of rounds as the hellcat pro.

  • 3
    Does it work as intended?

    Posted by Brian K Morrow on 17th Aug 2024

    Yes, but the fit is a tad loose. I have and own a 3D printer that prints amazing things, however I always give a light acetone paste brushing to permanently bond everything together for durability. Just a suggestion and would tighten up the sleeve. Nothing a shaker can of matt black paint won't cure and look amazing.