Primary Weapons Systems 9MM PCC Stripped Lower Receiver

Picture of a Primary Weapons Systems 9MM PCC Stripped Lower Receiver

Primary Weapons Systems 9MM PCC Stripped Lower Receiver

It’s great to see the field of 9mm AR hardware offerings growing and being refined pretty regularly. This PWS stripped lower looks pretty nice visually and on paper.

The Primary Weapons Systems 9MM PCC Stripped Lower Receiver is T6 6061 Machined Billet, Hard Type III Anodized and compatible with AR-15 Pattern Take-down Pins and accepts Glock 17 compatible magazines. This stripped AR lower includes the proprietary parts installed (last round hold open mechanism, ejector & magazine release)

  • 13oz in weight
  • Marked “CAL: 9MM”
  • Billet 6061-T6 receiver
  • Integrated trigger guard
  • Accepts Glock magazines
  • Upper/lower tension adjustment installed
  • Magazine release installed
  • Magazine bolt-hold installed
  • Bolt-hold release installed
  • Use standard AR parts to complete
  • Limited lifetime warranty

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PSA GEN4 AR9 16″ 9MM NITRIDE 1-10 13 5 LIGHTWEIGHT M-LOK RAILED UPPER

Picture of a PSA GEN4 16" 9MM NITRIDE 1/10 13.5" LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE - 5165449632

PSA GEN4 16" 9MM NITRIDE 1/10 13.5" LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE - 5165449632

The Palmetto State Armory Best Selling 9MM AR15 Upper Receiver Features

Barrel: 16″ chrome moly steel barrel, chambered in 9mm (9×19) with a 1/10 twist rate. The A2 profile barrel is nitride treated for durability and finished off with a Palmetto State Armory 13.5″ Lightweight M-Lok free-float rail and an A2 birdcage style flash hider.  The barrel is laser engraved with “9MM 1:10 PSA PCC CHAMBER” because it has been optimized for use in Pistol Caliber Carbine competitions.

Upper: Billet 6061-T6 A3 AR slick side upper is hard coat anodized black for durability.  These slick side upper receivers are made for us right here in the USA.

Bolt Carrier Group: Gen 4 Hybrid 9mm BCG.  Nitride treated 8620 steel bolt, with an enhanced firing pin and external 5.56 style ejector. The bolt carrier group is compatible with most aftermarket fire control groups.

To be used with Palmetto State Armory 9mm lowers that use either Colt® or Glock®-style magazines.

Each upper is assembled to order, and test fired to check function.

PSA GEN4 16″ 9MM NITRIDE 1/10 13.5″ LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE SPECIFICATIONS

SKU: 5165449632, UPC: 5165449632, MFR#: 5165449632

Barrel Length: 16″
Barrel Profile: A2 Style
Barrel Steel: Chrome Moly
Barrel Finish: NItride
Chrome Lining: No
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19) “9MM 1:10 PSA PCC CHAMBER”
Twist Rate: 1 in 10″
Barrel Extension: 9mm
Muzzle Device: A2 Bird Cage Flash Hider
Receiver Material: Billet 6061 T6
Receiver Type: Slick Side
Handguard Type: PSA 13.5″ Lightweight M-Lok Free Float Rail
BCG Included: Yes (Gen-4 Hybrid)
Bolt Steel: 8620, Nitride
Charging Handle Included: Yes

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BSF CARBON FIBER 9MM AR-15 BARRELS

BSF CARBON FIBER 9MM AR-15 BARREL
Picture of a BSF CARBON FIBER 9MM AR-15 BARREL

BSF CARBON FIBER 9MM AR-15 BARRELS

Lightweight Match-Quality Barrel for Your 9MM Pistol-Caliber AR-15

BSF Barrels builds their 9mm Luger AR-15 carbon fiber barrels with the same care that goes into a top-quality match barrel to ensure that you’ll achieve the best possible accuracy from your AR pistol, SBR, or carbine. All BSF barrels are turned from ordnance-grade 416R stainless steel, then given a roll-wrapped, tensioned, carbon fiber sleeve. The sleeve keeps weight down while providing excellent rigidity, plus enhanced cooling.

BSF uses this sleeve method on their 9mm Luger AR-15 barrels rather than simple carbon fiber wrapping because they believe wrapping traps heat and is prone to delamination. Further, BSF uses a special carbon fiber that expands at the same rate as 416R, and holes drilled into the jacket allow air to circulate around the barrel and vent heat quickly. Less heat distortion means far less risk of accuracy fade as your 9mm chambered AR-15’s barrel heats up.

BSF CARBON FIBER 9MM AR-15 BARREL SPECIFICATIONS

From the manufacturer: After turning down the barrel, we jacket a 416R Stainless steel match barrel in a roll-wrapped carbon fiber sleeve and load it under tension.  We use this jacketing method rather than wrapping the barrel in carbon fiber because this method of wrapping has been proven to trap heat and cause delamination.  The carbon fiber we use is specially designed to move at the same expansion rate as 416R stainless steel. We machine slots into the carbon fiber allowing air to move around the barrel and vent heat quicker without any delamination issues.  Using the Carbon Fiber this way keeps the rifling straighter the warmer the barrel gets because it’s under tension. This allows us to maintain superior stiffness and strength while keeping the barrel extremely lightweight.

  • 5.5″- 10.2 oz
  • 8.5″- 11.9 oz
  • 10.5″- 12.9 oz
  • 14.5″- 15.2 oz
  • 16″- 16.6 oz
  • 6 Groove Button Rifling
  • Thread: 1/2″ 28
  • .875 OD
  • 1:10 Twist Rate
  • Chambered in 9mm
  • PATENT PENDING

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ELFTMANN TACTICAL AR-9 MATCH TRIGGER

Picture of an ELFTMANN TACTICAL AR-9 MATCH TRIGGER

ELFTMANN TACTICAL AR-9 MATCH TRIGGER

The guys over at 308AR.com like Elftmann Tactical triggers in the 308AR/AR-10 platforms and that’s a pretty substantial endorsement as they can be quite picky. For me I like the idea of a purpose built trigger specifically for pistol caliber carbines.Pistol caliber AR-15’s like AR-9 and AR-45 operate on a blow-back design which can be tough on lower receivers, trigger pins and of course triggers.I don’t hands on yet but I will own one of these triggers soon.

Elftmann Tactical AR-9 Match Trigger

The ELF AR-9 Drop-In Match Trigger has been built for performance. Specifically developed for 9mm and .45 PCC platforms, after tens of thousands of rounds of testing in all platforms, the boss has decided this is the best trigger we have ever produced and does it all in every AR platform. It has a u-shaped captured disconnector that forces a positive hold on the hammer and also has a “pad” that matches up to an extension on the hammer. The pad is directly in line with the rear trigger pin so when the hammer is stopped by those matching surfaces it effectively eliminates trigger slap from the hammer hitting the disconnector and greatly enhances the feel of the  trigger during live fire. Absolutely compatible with the Sig MPX!

All our performance series triggers utilize aerospace grade sealed bearings, making for an incredibly smooth and fast trigger pull. Pull weight is so easy to adjust it can be done in seconds without removing the trigger from your lower receiver. A second-to-none drop-in trigger system that is strong and light, made of wire EDM machined, hardened A2 tool steel and lightweight aircraft grade aluminum. Installation can be done in minutes using your AR’s original hammer and trigger pins. The match trigger may be ordered with a curved or straight shoe.

The amazingly short take-up, glass-rod crisp break and next to zero over travel can be compared to the finest custom 1911 triggers. Adjustability puts you in charge based on your current use. If you are looking for the finest adjustable trigger for your AR-9 / AR-45 platform, this is the trigger system for you.

Elftmann Tactical AR-9 Match Trigger Product Description

  • Fits any mil-spec AR Platform
  • Compatible with Sig MPX which was used extensively in development
  • Absolutely Drop-Safe regardless of pull-weight
  •  Factory set Pull-weight is approximately 50% lighter than that of a standard AR platform trigger, providing a great combination of speed and accuracy
  • Adjustable from 4lbs to 2 3/4lbs without removing from lower
  •  Full power hammer spring ensures proper ignition of primer
  • Very short pull and reset allows for rapid follow up shots and greater accuracy
  •  Sturdy trigger assembly designed for rugged, trouble-free use; Made of lightweight aircraft-grade aluminum and hardened steel
  • Unique design of disconnect allows full 1/4” width eliminating possibility of wear and double-firing
  • High performance trigger and hammer sealed bearings for smoother and faster firing
  • Unique features include captured disconnector eliminating any possible double fires and anti trigger-slap geometry greatly enhancing live fire.
  •  100% made in America with a Lifetime Guarantee!

 

Elftmann Tactical AR-9 Match Trigger Installation Instructions

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YANKEE HILL MACHINE 9MM BOLT BUFFER YHM-925-A

Picture of a Yankee Hill Machine 9mm Bolt Buffer YHM-925-A

Yankee Hill Machine 9mm Bolt Buffer YHM-925-A

The Yankee Hill Machine 9mm Bolt Buffer YHM-925-A  designed for carbine AR-15 stocks is manufactured from high quality stainless steel and features extra weight and length for 9mm AR’s. The added length helps prevent breakage of the bolt catch. Includes a mil. spec. bumper. The buffer weight is 5.9 oz which places it between the 5.4 oz H3 and 6.08 oz VLTOR A5-H3 buffers.

Yankee Hill Machine has been in 9mm AR production longer than most and they know the platform well.

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