About Primary Weapons Systems
Primary Weapons Systems (PWS) was founded in 2008 by Dean Sylvester, a firearms industry veteran with over 18 years of experience and multiple patents in firearm innovations.
The company started by producing muzzle devices but quickly evolved after extensive testing revealed the maintenance advantages of piston-driven systems over traditional direct impingement platforms.
This research led to the development of PWS's revolutionary long-stroke piston system, which combines the agility of AR-15 platforms with the reliability of AK-47 systems.
Located in Boise, Idaho, PWS has grown to become the largest firearms manufacturer in the state and is recognized as the pinnacle of piston-driven AR-15 design.
In March 2022, the company was acquired by Vigilant Gear Holdings, ensuring continued growth and innovation in premium firearms manufacturing.
Popular Primary Weapons Systems Features
Long-Stroke Piston System
- This innovative system reduces fouling and maintenance requirements while providing increased reliability in adverse conditions.
3-Position Adjustable Gas Block
- Users can adjust gas settings for suppressed, unsuppressed, or adverse condition shooting scenarios.
PicLok Technology
- This patent-pending system allows compatibility with both Picatinny and MLOK accessories on the same rail system.
Sub-MOA Accuracy Guarantee
- PWS guarantees sub-minute-of-angle accuracy when using quality ammunition in their precision rifle configurations.
In-House Manufacturing
- Over 90% of components are manufactured in-house using state-of-the-art CNC machining and premium materials.
FNC LIFE HD Coating
- This advanced Lithium Embedded Salt Nitro-Carburized coating provides superior durability and corrosion resistance.
Best-Selling Primary Weapons Systems Rifles
MK116 MOD 2-M
- This 16-inch barrel rifle features the latest MOD 2-M configuration with PicLok technology and flared magazine well.
MK114 Series
- The 14.5-inch barrel model with pinned muzzle device offers compact performance while maintaining legal overall length.
MK118 MOD 2-M
- This 18-inch precision rifle configuration delivers exceptional accuracy for long-range shooting applications.
MK111 Series
- Available in short barrel rifle and pistol configurations for maximum maneuverability in close-quarters situations.
MK1 PRO Line
- This value-oriented option brings PWS piston technology to shooters with budgets under $1,000.
UXR Platform
- The revolutionary User Xchangeable Rifle allows tool-free barrel changes and caliber conversions in seconds.
MK2 Series
- These AR-10 platform rifles chamber .308 Winchester and 6.5 Creedmoor for larger caliber applications.
Popular Uses for Primary Weapons Systems
Law Enforcement and Military
- Agencies and special operations units choose PWS systems for their reliability and reduced maintenance requirements in demanding environments.
Competition Shooting
- 3-gun competitors appreciate the consistent performance and accuracy advantages of the piston-driven system.
Suppressed Shooting
- The adjustable gas system and optimized design make PWS rifles ideal for suppressor use with proper gas regulation.
Precision and Hunting
- The sub-MOA accuracy guarantee and available caliber options make PWS rifles excellent choices for hunting and long-range shooting.
High-Volume Training
- The reduced fouling and maintenance requirements allow for extended training sessions with minimal downtime for cleaning.
Primary Weapons Systems FAQs
QUESTION: What makes Primary Weapons Systems rifles different from standard AR-15s?
ANSWER: PWS rifles feature a long-stroke piston system that significantly reduces fouling and maintenance while improving reliability compared to direct impingement systems.
QUESTION: Are PWS rifles compatible with standard AR-15 lower receivers?
ANSWER: Yes, PWS MK1 series uppers are designed to work with standard AR-15 lower receivers and most aftermarket accessories.
QUESTION: What warranty does Primary Weapons Systems offer on their firearms?
ANSWER: PWS provides a limited lifetime warranty against manufacturer defects for all firearms and accessories sold in the United States.
QUESTION: Can I adjust the gas system on PWS rifles for suppressor use?
ANSWER: Yes, PWS rifles feature a 3-position adjustable gas block with settings for suppressed, unsuppressed, and adverse conditions.
QUESTION: What calibers are available in Primary Weapons Systems rifles?
ANSWER: PWS offers rifles in .223 Wylde, .300 Blackout, 7.62x39, .308 Winchester, and 6.5 Creedmoor calibers.
QUESTION: Do PWS rifles guarantee accuracy performance?
ANSWER: Yes, Primary Weapons Systems guarantees sub-MOA accuracy when using quality ammunition in their precision rifle configurations.
QUESTION: Where are Primary Weapons Systems rifles manufactured?
ANSWER: PWS rifles are manufactured in Boise, Idaho, with over 90% of components produced in-house using state-of-the-art CNC machining.
QUESTION: What is the UXR platform from Primary Weapons Systems?
ANSWER: The UXR (User Xchangeable Rifle) is a revolutionary modular platform allowing tool-free barrel changes and caliber conversions.
