Everything you need for your Effen 90 Tri-Rail or Effen 90 Standard SBR project. Effen 90 Standard or Effen 90 Tri-Rail Upper Receiver* CMMG 10.4″ Barrel CMMG PS90 Style Compensator or CMMG 1/2″x28 Thread Adapter Extended Cocking Handle...

Vortex's most affordable red dot proves that you can still get big performance without the big price tag. When your rifle needs a simple point of aim and none of the frills, the Crossfire should be at the top of your list. The 2 MOA dot is quick to...

Upgrade your PS90 trigger pack with ManKave’s aluminum Gen 1 hammer and sear. The Man Kave PS90 Gen 1 Hammer Short Pull is compatible with any Gen trigger pack and its easy install makes it a must have upgrade for your PS90. The PS90 Gen 1 Billet...

A perfect choice for your PS90 SBR project. Comes with a CMMG 10.4″ barrel and CMMG 1/2″ x 28 thread adapter for most suppressors. PS90 SBR Barrel Kit will allow you to convert your factory PS90 16″ barrel to a 10.4″ threaded Short Barrel...

The FastFire 3 is the best selling red dot sight from Burris. Light and tough, the FastFire 3 series puts an unmistakable, bright red dot on your target to give you an immediate speed and accuracy advantage. Can be used as a primary sight or paired on...

The Trijicon Miniature Rifle Optic (MRO®) is a reflex-style, sealed sight intended for use on rifles, carbines, and shotguns to provide fast target acquisition. It is designed to be used with both eyes open, providing the operator with maximum...

A perfect choice for your PS90 SBR project. Pair this with a CMMG PS90 Flash hider or thread adapter to complete your SBR. PS90 SBR Barrel Kit will allow you to convert your factory PS90 16″ barrel to a 10.4″ threaded Short Barrel Rifle. Installation is...