18" HBAR STAINLESS Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $169.99
Our Price: $139.99
Savings: $30.00
(Out of Stock)
10.5" M4 Contour Barrel 223 Wylde
Usually Ships in 2 to 3 Days
Our Price: $129.99
10 in stock!
BLACK RAIN STRIPPED LOWER - MILLED
Usually Ships in 24 to 72 Hours
List Price: $289.00
Our Price: $229.00
Savings: $60.00
18" HBAR STAINLESS Barrel chamberd in 223 wylde use mid gas system
10.5" M4 Contour Barrel chamberd in 223 wylde
Product Specifications
713757203906
  • Black Rain Ordnance
  • Milled Lower Receiver
  • Semi-automatic
  • Lower
  • 223 Rem
  • N/A
  • Black
  • N/A
  • 7075 Billet Aluminum, Beveled Mag Well, Winter Trigger Guard, M4 Feed Ramps, & Battle Grooves
16" HBAR STAINLESS Spiral Flute Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $199.00
Our Price: $159.99
Savings: $39.01
9 in stock!
16" HBAR STAINLESS straight flute Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $199.00
Our Price: $159.99
Savings: $39.01
10 in stock!
Nickle boron Fire control group
List Price: $99.99
Our Price: $69.99
Savings: $30.00
(Out of Stock)
16" HBAR STAINLESS spiral flute Barrel chambered in 223 wylde use carbine gas system
16" HBAR STAINLESS Barrel straight flute chambered in 223 wylde use carbine gas system


Please note photo is stock photo.

Nickel Boron Fire Control Group

Nickel Boron Hammer

Nickel Boron Trigger

Nickel Boron Disconnetor

This product caries a lifetime warranty.
STAG STRIPPED 5.56 LOWER RECEIVER
Usually Ships in 24 to 72 Hours
List Price: $142.00
Our Price: $115.00
Savings: $27.00
556/.223 Lower Parts Kit
Usually Ships in 2 to 3 Days
List Price: $89.99
Our Price: $55.99
Sale Price: $49.99
Savings: $40.00
4 in stock!
Anderson MFG stripped lower
Usually Ships in 3 to 5 Days
List Price: $80.00
Our Price: $49.99
Savings: $30.01
4 in stock!
Product Specifications
898559001278
  • Stag Arms LLC
  • SALWR
  • Semi-automatic
  • Lower
  • 223 Rem
  • 556NATO
  • N/A
  • Black
  • N/A
  • Stripped

Bolt Catch, Bolt Catch Plunger, Bolt Catch Roll Pin, Bolt Catch Spring, Buffer, Retainer, Buffer Retainer Spring, Disconnector, Disconnector Spring, Hammer, Hammer Pin, Hammer Spring, Magazine Catch, Magazine Catch Button, Magazine, Catch Spring, Pistol Grip (A2 style), Pistol Grip Lock Washer, Pistol Grip Screw, Pivot Pin, Pivot Pin Detent, Pivot Pin Detent Spring, Selector, Selector Detent, Selector Detent Spring, Takedown Pin, Takedown Pin Detent, Takedown Pin, Detent Spring, Trigger, Trigger Guard, Trigger Guard Roll Pin, Trigger Pin, Trigger Spring

Product Specs Manufacturer Number AR15-A3-LWFOR Capacity 5.56 / 223 Finish Hard Anodized Finish Material 7075-T6 Aluminum

BUSHMASTER UPPER PREDATOR 223 20" FLAT TOP
Usually Ships in 24 to 72 Hours
List Price: $699.00
Our Price: $639.78
Savings: $59.22
(Out of Stock)
AR15/M16 LOW PROFILE GAS BLOCK FOR 3/4 INCH BARRELS
Usually Ships in 24 to 72 Hours
List Price: $39.99
Our Price: $20.00
Savings: $19.99
2 in stock!
DPMS 308 LOWER RECEIVER PARTS KIT
Usually Ships in 1 to 2 Days
List Price: $99.99
Our Price: $78.99
Savings: $21.00
50 in stock!
Product Specifications
  • 604206924506
  • Bushmaster
  • Predator
  • Upper
  • 556NATO
  • 223 Rem
  • 20"
  • Black
  • Fluted
  • AR Rifles
  • Flat Top
LOW PROFILE GAS BLOCK IS MADE FROM 4140 MATERIAL WITH A BLACK PHOSPHATE FINISH. IT IS MADE FOR .750 BARRELS WITH GRADE 8 SET SCREWS 100% made in the USA
UPC Code: 884451000761
   Manufacturer: DPMS
   Type: Part

   Finish/Color: Black
   Description: Lower Receiver Parts Kit
   Manufacturer Part #: LRPK308
Nickle boron full auto BCG complete 556/223/300blk
Usually Ships in 2 to 3 Days
List Price: $189.00
Our Price: $125.00
Sale Price: $109.00
Savings: $80.00
15 in stock!
16" 223 Wylde Hbar Barrel, Threaded 1/2-28 for Flash Hider
Usually Ships in 24 to 72 Hours
List Price: $199.99
Our Price: $120.00
Savings: $79.99
10 in stock!
BUSHMASTER UPPER M4A3 223 16" BLK
Usually Ships in 24 to 72 Hours
List Price: $699.00
Our Price: $589.76
Savings: $109.24

BCG's are 100% made in America with 100% American materials. BCG also comes with a limited lifetime warranty. If for any reason the BCG has an issue we will replace it. As per our limited warranty guidelines. These BCG are not over runs or blems. They are made for us.


  • 9310 material
  • Shot Peened/MPI
  • Heat Treated
  • Nickel Boron Plated

CARRIER:

  • SAE 8620
  • Heat Treated
  • Nickel Boron Plated
  • Full Auto

EXTRACTOR:

  • CNC machined
  • Shot Peened
  • Heat Treated
  • Nickel Boron Plated

FIRING PIN:

  • Swiss machined
  • Heat Treated
  • Precision ground

GAS KEY

  • CNC machined
  • Heat Treated
  • Chrome Lined
  • Torqued and Staked to Carrier Mil Spec.
  • Nickel Boron Plated

CAM PIN:

  • Swiss machined
  • Heat Treated
  • Nickel Boron Plated


KOPP PRECISION PRODUCTS ARE 100% MADE IN THE USA TO ENSURE THAT YOU ARE GETTING THE BEST PRODUCT ON THE MARKET. THESE PRODUCTS ARE MANUFACTURED AND TESTED TO THE HIGHEST QUALITY STANDARDS BY THE AMERICAN WORK FORCE.

16"Hbar barrel,
-Chambered 223 wylde,
-1-9 twist,
-M4 feed ramps,
-Threaded 1/2-28 for flash hider,
-Non-chrome lined,
-.750 gas block dia. parkerized,
-Ready to install,
-Uses a carbine length gas tube,
-Barrel diameter at gas block .750"
Product Specifications
  • 604206918222
  • Bushmaster
  • M4A3
  • Upper
  • 556NATO
  • 223 Rem
  • 16"
  • Black
  • Bayonet Lug and A2 Birdcage
  • A2
  • Carry Handle
  • AR Rifles
  • A2 Front
18" HBAR STAINLESS Spiral Flute Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $199.00
Our Price: $159.99
Savings: $39.01
(Out of Stock)
14.5" M4 Contour Barrel
Usually Ships in 24 to 72 Hours
List Price: $190.00
Our Price: $129.00
Savings: $61.00
10 in stock!
M16 5.56/.223 Complete Bolt and Carrier Group
Usually Ships in 2 to 3 Business Days
List Price: $185.00
Our Price: $89.00
Sale Price: $80.00
Savings: $105.00
8 in stock!
18" HBAR STAINLESS spiral flute Barrel chamberd in 223 wylde use mid gas system

14.5" M4 contour barrel, chambered 5.56/ .223, 1-7 twist, threaded 1/2-28 for flash hider, M4 feed ramps, non-chrome lined, .750 gas block dia. parkerized, ready to install, uses carbine length gas tube, phosphate ***NFA Rules Apply*** ***The purchaser and owner of this product is responsible for checking with their local, state and federal laws.***

M16 5.56/.223 Complete Bolt and Carrier Group is chrome lined, made from 8620 steel, Bolt is made from 9310 steel and coated per mil spec. MPI Tested. Bolt and Bolt Carrier Assembly comes complete with cam pin , firing pin and firing pin retainer.

STAG STRIPPED 5.56 LOWER (2ND AMEND)
Usually Ships in 24 to 72 Hours
List Price: $142.00
Our Price: $123.00
Savings: $19.00
10.5" HBAR Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $159.99
Our Price: $129.99
Savings: $30.00
3 in stock!
MAGPUL PMAG MOE 5.56 30RD Blk
Usually Ships in 24 to 72 Hours
List Price: $15.99
Our Price: $10.25
Savings: $5.74
1250 in stock!
Product Specifications
898559001278
  • Stag Arms LLC
  • SALWR
  • Semi-automatic
  • Lower
  • 223 Rem
  • 556NATO
  • N/A
  • Black
  • N/A
  • Stripped
10.5" HBAR Barrel chamberd in 223 wylde

Manufacturer: Magpul Industries Type: Mag Model: PMAG Caliber: 556NATO

Caliber: 223 Rem Capacity: 30Rd Finish/Color: BLK Fit: AR Rifles Manufacturer Part #: MAG571-FDE

16" phosphate build kit minus lower
Usually Ships in 2 to 3 Business Days
List Price: $599.99
Our Price: $450.00
Savings: $149.99
16" 223 wylde M4 countour basic upper
Usually Ships in 3 to 5 Business Days
List Price: $455.00
Our Price: $360.00
Savings: $95.00
18" HBAR STAINLESS Straight Flute Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $199.00
Our Price: $159.99
Savings: $39.01
(Out of Stock)

Mil spec LPK ground down no grit trigger

Mil spec buffer tube and stock with standard carbine buffer and spring.

7075-T6 Alum Tmarked upper receiver

223 wylde 16” 4140 premium cold rolled steel M4 countor black phosphate

Forward assist and dust cover

A2 Style Hand Guard

A2 bird cage

Alum Rail gas block not rail height

Mil spec charging handle

M16 full auto carried bolt carrier group (black phosphate)

Everything comes with a limited lifetime replacement warranty.

7075-T6 Alum Tmarked upper receiver

223 wylde 16” 4140 premium cold rolled steel M4 countor black phosphate

Forward assist and dust cover

A2 Style Hand Guard

A2 bird cage

Alum Rail gas block not rail height

Mil spec charging handle

M16 full auto carried bolt carrier group (black phosphate)

Everything comes with a limited lifetime replacement warranty.

18" HBAR STAINLESS Stright Barrel chamberd in 223 wylde use mid gas system
16" HBAR STAINLESS Barrel 223 Wylde
Usually Ships in 2 to 3 Days
List Price: $199.00
Our Price: $129.99
Savings: $69.01
(Out of Stock)
16" HBAR STAINLESS Barrel chambered in 223 wylde use carbine gas system