3CR Tactical | Firearm parts, accessories and build kits.

Featured Products

Sale!

Build Kits

Complete AR-15 Pistol Kit – 11.5″ 5.56 Barrel – M-lok Rail – SBA Brace

$599.00

Sale!

Lower Receivers and Parts

80% AR-15 Billet Lower Receiver In-The-White

$43.00

Sale!

Polymer80 Build Kits

Build-Your-Own Glock 19 Gen 3 Complete Slide

$215.23

Sale!

Polymer80 Build Kits

Build-Your-Own Glock 43/43X Complete Slide

$360.14

Sale!

Polymer80 Build Kits

Build-Your-Own Glock 26 Complete Slide

$295.99

Polymer80

Polymer80 PF940v2 9MM/40 GLOCK 17/17L/22/24/31/34/35 80% Polymer Frame Kit

~~$149.99~~ See Price in Cart

Polymer80

Polymer80 PF45 Large Frame GLOCK 20/21 80% Polymer Frame Kit

~~$160.00~~ See Price in Cart

Sale!

Build Kits

AR-15 15″ M-LOK Carbine Full Kit

$499.00

Glock Misc Parts

9mm Factory Replacement Glock Barrel Thread Protector

$19.99

Glock Misc Parts

Rival Arms Stainless Steel Guide Rod Assembly For Glock 17 Gen 3

$32.99

Keymod

10 Pack KeyMod Standard Steel T-Nut and Screw Set

$9.99

Magpul MAG400 Adjustable 6 position carbine stock

Butt Stocks

Magpul Industries MOE Collapsible Mil-Spec Carbine Stock

$37.95

Sale!

Slides

Brownells Glock 17 Gen 3 Blank Slide

$175.95

Gas Blocks and Gas Tubes

.750 Clamp-On Low Profile Adjustable Gas Block

$27.99

Charging Handles

Ambidextrous Dual Extended Engraved Charging Handle

$24.99

Sale!

Apex Action Enhancement Red Trigger with OEM Trigger bar

Glock Misc Parts

Apex Action Enhancement Trigger with Trigger Bar for Glock Pistols – Red

$99.70

Charging Handles

Seekins Precision DNA Charging Handle .308-7.62

$67.99

Buffer Tubes and Kits

BCM Milspec Stock Hardware Mount Kit

$65.00

Parts Kits

Anderson Manufacturing Mil-Spec Oops Kit

$12.99

Pistol Optics

Swamp Fox Optics Justice Micro Reflex Sight

$224.99

Gunsmithing Tools

Aluminum Gas Block Pinning Jig

$19.99

Sig

Backup Tactical 9mm Threaded Barrel for P320 Full Size

$169.99

Parts Kits

Buffer Detent and Spring

$5.99

Gas Blocks and Gas Tubes

11.75″ Mid Length Stainless Steel Gas Tube for .223/5.56

$14.99

Gunsmithing Tools

Steel Combo Armorers Wrench

$22.99

Polymer80

Polymer 80 Glock 43 PF9SS 80% Single Stack Pistol Frame Kit

~~$149.99~~ See Price in Cart

Buffer Tubes and Kits

5 Piece Six-Position Mil-Spec Buffer Tube Kit

$24.99

1911

1911 Muzzle Brake Compensator

$39.99 – $44.99

Sale!

Glock Misc Parts

Glock G17/22/24/31 Recoil Rod and Spring

$12.99

Cases and Bags

Glock OEM Double Pistol Case – Grey

$26.05

Scopes & Sights

Spike’s Gen 2 Rear Folding Micro Sights – Black

$122.99

Slings and Mounts

1″ Ring Mount Set

$7.95 – $8.99

Latest Articles

Common Troubleshooting Tips for Polymer80/80% Pistol Builds

Growing list of resources and how-to videos to resolve most common Polymer80 build issues. [...]

20
Jun

Installing Glock 17/19 Slide Parts Kit

If you’re shopping around for a slide for your Glock or Polymer80 build, you’ve probably [...]

08
Jan

A Better-than-basic Glock 17 Clone Build List for Under $500

The Glock 17 has been around for almost 40 years now and is one of [...]

11
Aug

Identifying Your .308 Upper Receiver

A lot of terms are thrown around when it comes to the .308 world that [...]

09
Jul

Sub $400 Budget AR15 Build List

Below we have a list of parts we carry for a basic, budget AR15 carbine [...]

28
Dec

New arrivals

POLYMER80 Build Kits

Build Your Own Slide Kits