Worker MOD F10555 Pump Action ESPER 3D Print Stefan Blaster for Nerf Foam Short Darts Toy



Low in stock

Please select a style
Whoa! You can't buy your own item.

Selling fast! Only 5 left, and 3 people have it in their carts.

Hooray! This item ships free to the US.

  • Handmade
  • Materials: PLA

"Build It Yourself" Blaster Kits require the customer to do complete assembly of the blaster. This typically includes filing holes to get components to fit and filing off print brims/burrs. And as such what you are buying is all of the as-printed parts, and all of the pre-cut hardware needed for assembly.
The ESPER is a Mag-Fed Pump-Action Homemade Blaster design released as an Open Source Non-Commercial license file set by Captain Slug.

Item does not include a magazine, it is compatible with both Talon and Katana magazine. It is only compatible to half length darts.

This Kit Include the following parts:
* F10555 ESPER Blaster 3D Printing Parts
* F10555 ESPER Blaster Metal Rod and Screw Parts
* Elastic cord

Weight (g): 1400
Color: Red / Black
Material: PLA, Steel Bar
Fomation: 3D Printing
Packing: Carton Box
Packing Size (LxWxH, mm): 350 x 100 x 180

*ESPER is an original design by captainslug, Worker company is doing so in exchange for a royalty agreement.*


Estimated arrival

The estimated delivery date is based on your purchase date, the recipient's location (actual or inferred), the seller's processing time and location, and the shipping carrier.

Other factors—such as shipping carrier delays or placing an order on weekend/holiday—may push the arrival of your item beyond this date.

Learn more

Dec 21-30

Nov 30

Order placed

After you place your order, AKBlasterMOD will take 1 business day to prepare it for shipment.

Dec 1

Order ships

AKBlasterMOD puts your order in the mail.

Dec 21-30


Estimated to arrive at your doorstep Dec 21-30!

Cost to ship


Returns & exchanges


Exceptions may apply
Etsy offsets carbon emissions from shipping and packaging on this purchase.
Etsy offsets carbon emissions from shipping and packaging on this purchase.

There was a problem calculating your shipping. Please try again.

Ships from Hong Kong
AK BlasterMOD

AK BlasterMOD

Owner of AKBlasterMOD

Message AK

This seller usually responds within 24 hours.

AKBlasterMOD made this item with help from
Worker MOD, Hong Kong

3,624 shop reviews

4.5 out of 5 stars

Buyers are raving!

Multiple people gave 5-star reviews to this shop in the past 7 days.


Hoobs Nov 22, 2021

5 out of 5 stars

Bought this for a SPAMF kit, so I can't say how good it is for a retaliator. That being said, works great as a SPAMF upgrade spring. If you go this route, you won't be able to use the spring compressor that comes with the SPAMF kit along with this spring.

Purchased item:

Ely Rodriguez Nov 13, 2021

5 out of 5 stars

This 1.8 spring is a beast. Your arm is gonna feel it. Excellent for long range accurate sniper mode. Get a 3-9 x scope and you're good.

Purchased item:

Ethan Monsour Nov 15, 2021

5 out of 5 stars

Absolutely fantastic. Everyone comments how incredible they look.

Purchased item:

Hoobs Nov 27, 2021

5 out of 5 stars

bought a few of these before. It's a fun little cosmetic mod, especially for brass/inline clip mods. Cutting can be a little tricky, but the cutting guide helps.

Purchased item:

Disclaimer: As with all children's products, adult supervision is required. Products that contain small parts may pose a choking hazard and should not be used by children under 3. Sellers are responsible for following applicable laws and regulations, including posting items with accurate labeling and warnings. Etsy assumes no responsibility for the accuracy, labeling, or content of sellers' listings and products. Always read labels, warnings, directions and other information provided with the product before using it. If you have questions, contact the seller by sending a Message. See Etsy's Terms of Use for more information