SKU CSSI|QLRA42G006A Category

Rival Arms Glock Slide Completion Kit for Glock 21 Black

Rival Arms Glock Slide Completion Kit for Glock 21 Black

$119.99

6 in stock

The devil is in the details. A great slide is the foundation of your build but it is important to finish that slide with high quality components designed to provide accuracy and consistency. Instead of sourcing every part individually the slide completion kit includes every part needed to assemble the internal workings of your slide—all designed to work together. After completing the slide just add a barrel guide rod and a completed lower then pack your bag for the range.

Features: 

  • Tighter tolerances than factory
  • Low-temperature vacuum PVD (Physical Vapor Deposition) coating on select parts creates a durable barrier against wear and tear
  • Select parts CNC-machined from solid stainless steel billet
  • Individually hand inspected for accuracy
  • No gunsmith required
  • Limited lifetime warranty 

Includes everything needed to finish out your slide:

  • Striker (firing pin) Spring
  • Extractor
  • Striker (firing pin) Safety Spring
  • Back Cover Plate
  • Extractor Depressor Plunger
  • RA Precision Striker (firing pin)
  • Striker (firing pin) Spacer Sleeve
  • Depressor Plunger Spring
  • Striker (firing pin) Safety
  • Spring Loaded Bearing
  • Striker (firing pin) Spring Cups
  • Slide Channel Liner

Additional information

Upc

788130031971

Manufacturer

Rival Arms

Manufacturer part number

RA-RA42G006A

Model

Slide Completion Kit

Shipping weight

0.075

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

Social Media Posts

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Customer Reviews

“Outstanding customer service.” I had a lot of questions before buying, and they walked me through everything without pressure. Super knowledgeable and easy to work with. You can tell they actually care about their customers.
Verified Customer
“Best experience I’ve had buying gear.” Professional, responsive, and honest. They helped me choose exactly what I needed without overselling anything. I’ll definitely be coming back.
Verified Customer
“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
Verified customer

BJ FIREARMS LLC

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