Visit

https://www.sabertootharms.com/

for inventory not listed on Armslist! Order 10,000+ items online! Shipping and local pickup are both available!

Shop online or at the new RETAIL LOCATION: 1616 Government St, Mobile, AL

Checkout directly through the website for the fastest service and shipping.



New In Packaging - WILL SHIP!

Shipping is a flat $25.

The stripped lower requires a background check or shipping to your local dealer.

Included in this purchase is a complete package. I will not separate out any component, so please do not ask.

Included are the four items seen in the photographs:

FosTecH Complete LOW MASS Bolt Carrier Group (Nickel Boron)

This is a standard full-auto M16 cut bolt carrier group. It is designed to function with the Echo AR-II and the Echo Sport.

Full Profile M16 Bolt Carrier Group — Low Mass Nickel Boron

Bolt Assembly 

Bolt: Shot Peened; Magnetic Particle

Inspected and Marked

Bolt Material:  9310 Alloy Steel

Compatibility: .223 / .556 / 300BLK

Extractor: Shot Peened Hardened tool Steel Extractor 0-Ring: Viton, Mil-Spec

Gas Rings (3): Mil-Spec

Finish: NICKEL BORON

Bolt Carrier 

Material: 8620 Steel

Design: Heavy Profile M16 Style

(Preferred for most AR-15 Builds)

Gas Key Screws: Grade 8; Properly Torqued and Staked to Mil-Spec

Finish: NICKEL BORON 

Cam Pin: 

Material: 4140 Steel

Finish: NICKEL BORON

Firing Pin

Material: 8740 Steel; Centerless ground; Hard Chrome Plated

Weight: 8.5 Ounces

100% USA Made

Stripped Upper Receiver AR-15 Platform (Forged Aluminum)

Fostech Fighter Series Stripped Forged Aluminum Upper Receiver

Mil-Spec AR-15

100% USA Made

Limited Lifetime Warranty

**ONLY USE REACTION/ACTION ROD VISES WHEN ASSEMBLYING UPPER RECEIVER***

Tech-15 Stripped Lower AR-15 Platform (Forged Aluminum)

Fostech Tech-15 Series Stripped Lower Receiver

***Stripped – No LPK included***

Forged Aluminum Construction

Mil-Spec AR-15

100% USA Made

Limited Lifetime Warranty

Fostech Echo Sport Trigger Fast Fire Trigger System - 4140

The Echo Sport Trigger from Fostech provides the same pull-and-release firing functionality of the original Fostech Echo AR-II Trigger, but the controls have been modified to eliminate the use of the 3rd safety selector position. Instead, a control paddle in front of the trigger guard moves side to side to select single fire or Echo firing modes. Same functionality, but at a significantly lower price!

The Echo Sport Trigger allows the shooter to select from 3 different settings:

Safe Mode: Firearm will not fire. 
Semi-Automatic Mode: Firearm fires when the trigger is pulled. 
Echo Mode: Firearm fires when the trigger is pulled and also when the trigger is released. 

The Echo Sport is different from Fostech’s Echo AR-II in that there’s an added paddle switch in front of the trigger to change firing modes from binary to standard semi-automatic firing instead of using the safety selector like the original Echo trigger.

When the shooter is in the Echo Mode and depresses the trigger firing one round, the shooter can move the paddle to the semi position while firmly holding the trigger rearward and a second round will not fire upon release. 

Patent Pending new ATF Approved design. Not a single drop-in assembly like the original, the Sport functions with any full-auto style bolt carrier.

____________________________________________________