Firearms AR-15 / M16 Parts Shop

CSS designs, manufactures and markets a variety of aftermarket parts specifically for the AR-15/M-16 family of firearms. Find a listing and ordering information below.

Action Spring [17-7]
Action Spring [Music]
Auto Sear Spring
Bolt Catch Spring
Buffer Retainer Spring
Car Action Spring [17-7]
Car Action Spring [Music]
Charging Handle Latch
Charging Handle Latch Spring
Cover Spring
Detent Take Down Spring
Disconnector Spring (3rd Burst or Full Auto)
Disconnector Spring (Semi Auto Only)
Ejection Port Cover Door (.223)
Ejection Port Cover Door (.308)
Ejector Spring (Selector Spring)

Minimum Shipment is $250.00
Elevation Spring
Extractor Spring
Front Sight Spring
Gas Ring, Bolt
Hammer Spring 2 (Semi Auto Only)
Hammer Spring (3rd Burst or Full Auto)
Handguard Cap
Handguard Cap-Grenade Launcher
Index Spring 1 (3rd Burst or Full Auto)
Index Spring 2 (Semi Auto Only)
Magazine Catch Spring
Plunger Spring / Forward Assist
Rear Sight Spring
Receiver End Plate
Trigger Guard Spring
Trigger Spring

We accept Visa and Mastercard
For pricing information, please email us or call 860.703.1615 or Fax 860.677.6008.

Please visit our Firearms Markets page and Firearms Gallery. You may also submit a Request for Quote or Contact Us with any questions you may have pertaining to our Firearms Component and Assembly manufacturing capabilities.