HK Parts Build-Off Contest

Submissions Open September 2 - October 2, 2026

Show Us Your Build

Submit a firearm built using an HK Parts parts kit. The HK Parts team will select 11 finalists, then the HK Parts community will vote to choose the winning build.

Submit Your Build Official Rules
HK MP5 10mm pistol build on a red background
11 FinalistsSelected by HK Parts
$2,879.95Total Prize Value
Community VoteOne Verified Vote Per Person and Email Address
The Competition

How It Works

You built it. Now give the HK Parts community a chance to see what you created.

01

Submit Your Build

Send photos and details of a firearm built using any HK Parts parts kit purchased at any time.

02

HK Parts Reviews

Our team scores eligible entries for craftsmanship, originality, kit integration, appearance and presentation.

03

Community Voting

Eleven finalists go live October 9. The HK Parts community may cast one verified vote per person and email address through October 22.

04

One Build Wins

The finalist receiving the most valid votes wins the grand-prize kit. The other 10 finalists also win.

$1,879.95 Grand Prize

Build Something Legendary

The winning builder receives the featured HK MP5 10mm pistol parts kit.

Two completed HK-style builds displayed on a gray surface
Completed HK-style build displayed in a vehicle
Grand Prize

HK MP5 Parts Kit

10mm Pistol Kit

The winner receives an HKP MP5 10mm pistol parts kit featuring the components identified on the product page at the start of the contest.

SKU: HKP-18409Value: $1,879.95Caliber: 10mm

HK Parts will pay standard shipping for the grand prize to a lawful delivery address within the United States.

View the Prize Kit
10
Runner-Up Prizes

Every Finalist Wins

The 10 finalists who do not receive the grand prize will each receive a one-time $100 discount code for a future order at hkparts.net. Codes expire 90 days after issuance and are subject to the Official Rules.

HK Parts Review

What Makes a Finalist?

The HK Parts team uses the same published scorecard for every eligible submission.

30%Craftsmanship and Execution
25%Originality and Customization
20%HK Parts Kit Integration
15%Overall Appearance
10%Visual Presentation
Before You Enter

Submission Requirements

  • Entrant must be at least 21 and a legal resident of the 50 United States or District of Columbia.
  • The build must incorporate components from an HK Parts parts kit purchased at any time.
  • Submit at least three clear, original photos showing the complete build and important details. Additional photos are welcome within the entry form's upload limits, so go ahead and give your build the full photo shoot treatment.
  • Do not show visible serial numbers, personal information, live ammunition or unsafe handling.
  • The entrant must own the build or have full legal authority to submit it.
  • The build and depicted components must comply with applicable federal, state and local laws.
  • Limit one submission per person.
Contest Schedule

Important Dates

  1. September 2 - October 2Build submissions accepted through 11:59 PM MT on October 2.
  2. October 3 - 8HK Parts reviews and scores eligible submissions.
  3. October 9Eleven finalists announced and community voting begins.
  4. October 22Community voting closes at 11:59 PM MT.
  5. October 23Potential winners are anticipated to be contacted.
Entries Close October 2

Think Your Build Has What It Takes?

Gather your best photos, tell us what makes the build special and submit it by 11:59 PM Mountain Time on October 2.

Submit Your Build Official Rules

Skill-based contest. No random drawing. Submission period begins September 2, 2026 at 12:00 AM MT and ends October 2, 2026 at 11:59 PM MT. Open to eligible legal residents of the 50 United States and District of Columbia, age 21 or older. Void where prohibited. Limit one entry per person.

The grand prize is a parts kit and not a completed firearm. Assembly, finishing, tools, ammunition, gunsmithing, licenses, permits, taxes and other expenses are not included. Standard prize shipping is paid by HK Parts. Restricted components may be substituted, limited or removed as required by law. See the Official Rules for complete details.