SOLGW 16″ 6mm Max + M89 Upper Receiver Builder Kit for AR-15

Name: SOLGW 16" 6mm Max + M89, Upper Receiver Builder Kit
Availability: InStock

$930.00 – $1,120.00

Introducing our Sons Of Liberty Gun Works 6mm Max Complete Upper Receiver Builder Kit! Here at Drilled Armory, we are pumped for the new 6mm Max cartridge created for the AR-15 platform by Precision Ballistics and brought to market with the help of Sons of Liberty Gun Works. The speed, accuracy and reliability we are seeing from this cartridge out of an AR platform is impressive, to say the least.

TWO WAYS TO ORDER

1. IN STOCK & READY TO SHIP
This configuration is in stock and ready to ship. Choose between the standard SOLGW Stripper Upper Receiver and the SOLGW Broadsword Upper Receiver.

SOLGW 6mm Max SPR Barrel, 16” (intermediate gas tube 13.65″)
SOLGW Stripped Upper Receiver: Standard or Broadsword (choose option below)
SOLGW M89 Handguard, 15″
Forward Controls Design Low-Snag Forward Assist, Dimpled (LSFA-AA)
Magpul Enhanced Ejection Port Cover, Black
Forward Controls Design, Stoner 63 Style Compensator – 5/8×24 (FCD6310)
SOLGW v2 Gas Block
SOLGW Intermediate Length Gas Tube, QPQ
Duramag 6mm Max, 20 Round Magazine (1)

2. CUSTOMIZE
We all like options but sourcing all the parts can be time consuming, and costly when factoring in shipping costs from various retailers. Let us help streamline the process. Send your choices from each category to support@drilledarmory.com and we’ll put together a package price you’ll be happy with.

SOLGW 6mm Max SPR Barrel: 12.5″ (carbine) // 14.5” (mid) // 16″ (intermediate – 13.65″) // 18″ (rifle) // 20″ (rifle +1″)
SOLGW Stripped Upper Receiver: Standard // Broadsword
SOLGW M89 Handguard: 11.5″ // 13″ // 15″ // 16.75″
Forward Assist: Forward Controls Design (Dimpled) LSFA-AA
Ejection Port Cover: Magpul Enhanced Ejection Port Cover
Muzzle Device: A2 Flash Hider // none
Gas Block: Forward Controls Design GBF // SOLGW v2
Gas Tube: options dependent on length

PLEASE NOTE:
Price(s) displayed for this product is for the “Ready To Ship” option above only.
Lead times for “Build Your Own” currently 1-3 weeks.

SOLGW 6mm Max Complete Upper Receiver - Right Side

SOLGW 16" 6mm Max + M89 Upper Receiver Builder Kit for AR-15

$930.00 – $1,120.00

Stripped Upper Receiver: No selection

More options

Clear

While there are many things to love about 6mm Max, including increased velocity and higher BC bullets, current AR-15 owners will love the fact that, apart from the barrel, every component of the AR-15 (including the same bolt carrier group for 556) is compatible with the 6mm Max cartridge.

The 6mm Max Cartridge: A Deeper Dive
6mm Max is designed for the unmodified mil-spec .378 bolt face, and a full mass bolt carrier group. This means that 6mm Max uses the same standard, unmodified, AR-15 bolt carrier group as the 556, avoiding bolt wear and breakage issues commonly seen with cartridges like the 6mm ARC.

Using the 350 Legend as a parent case for the 6mm Max, Precision Ballistics was able to increase and use an OAL of 2.30 for a range of bullet weights from 55 gr to 105 gr, allowing for inherent accuracy across these weights. And because 350 Legend was originally designed for the AR-15, 6mm Max feeds flawlessly from a 350 Legend magazine.

Advantages of the 6mm Max include over 556
Increased velocity
Greater range of bullet weights
Use bullets with higher BC
Legal in more states to hunt large game

Advantages of the 6mm Max over 6mm ARC
Uses unmodified 556 bolt face (more durable)
Wider operational envelope (ie. improved reliability when shooting suppressed or unsuppressed)

So, exactly what kind of velocity can be expected from 6mm Max? According to the Precision Ballistics website, “The 6mm MAX can launch an 87 gr Berger VLD at 3009 fps from a 24” barrel … and stays supersonic past 1000 yards.” In SOLGW’s video of Mike Mihalski comparing 6mm Max to 556, he chronographed impressive velocities from a stubby 10.5” barrel: 55gr @ 3165 fps, 62gr @ 2913 fps, 77gr @ 2687 fps.

Being a new-to-market cartridge, ammo availability and cost is naturally a concern for many shooters. As of this writing, 6mm Max ammunition can be purchased through Precision Ballistics at $1.50 per round for the following options: 58gr V-Max, 80gr ELD-VT, 85gr Speer BTSP, 90gr ELD-X, 105gr HPBT

If you hand load, the 6mm Max has support from Starline Brass and reloading dies are available from Lee and Lyman.

Additional information

Stripped Upper Receiver: No selection	SOLGW AR-15 Stripped Upper Receiver (MPN: UPPER-STRIPPED), SOLGW AR-15 Broadsword Stripped Upper Receiver (MPN: BROADSWORD-89-UR)