CM15 .338 Spectre AR15 Pistol or SBR 10.5″ 338 Spectre Black Tungsten and Black

AR15 338 Spectre Pistol or SBR 10.5″ 338 Spectre Black Tungsten

This is the flagship AR15 338 Spectre Pistol of Chattahoochee Munitions. This will be one of the sturdiest feeling weapons as everything is designed in tight tolerances. Pictures show a Q Brake, but we can substitute for any 5/8×24 muzzle device of your choosing whether Keymo, ASR, Q Cherry Bomb, etc. (Price variance applies to some muzzle devices). All of our firearms are equipped with HIPERFIRE (High Performance Firearms) Triggers; all are 2.5lb single stage Reflex (curved) or Competition (straight with shoe); Competition is pictured.

History of 338 Spectre

Marty ter Weeme of TEPPO JUTSU invented and developed the 338 Spectre as a dual purpose round, much like his 458 SOCOM round in early 2001. The parent case is that of a 10mm Magnum, which is a lengthened 10mm case and should not be confused with the shorter round. The case is necked down to accept a .338″-diameter bullet and this in turn offers quite an array of projectiles for the reloader and shooter.

Early prototypes and development of upper receivers used integral suppressors for sniper security teams and other clandestine operations. This was easily accomplished because of the low gas volume generated by the 338 Spectre which makes it an ideal cartridge for use with suppressors.

What is it good for?

This extremely versatile round is useful in many situations from law-enforcement and military scenarios to hunting medium-sized game at close distance to casual or professional level target shooting applications. In many ways, this round is superior to the 300 Blackout.

The case head shares the same dimensions as the 6.8 SPC rifle cartridge. Likewise, 6.8 SPC rifle magazines will hold a full payload of cartridges as opposed to 5.56 NATO magazines which will hold a reduced amount. AR magazines intended for 7.62 x 39mm will hold the full number of rounds intended as well.

For the subsonic loading, a 9mm pistol suppressor will suffice to keep it quiet. Suppressors such as this are much cheaper than the heavy duty suppressors intended for 338 Lapua Magnum. (Check with suppressor manufacturer to verify rated for 338 Spectre if using any other than a Hybrid 36 or 46, or 338 can.)

CM15 Upper and Lower Receiver:

• Mil-spec dimensions to mate with any AR15 Components
• CNC machined from 7075-T6 billet aluminum
• Pictogram’ style Fire/Safe engravings on both sides
• Light-Weight FCG Faces and Mag-well
• Integral trigger guard for added overall strength
• Machined (not broached) Mag-well with wide flare
• Lightweight Lower Receiver Weight = 8.0 oz
• Black Tungsten Cerakote

Lower Parts:

• CM Ambi Safety
• CM Ambi Mag Release
• CM15 Pivot and Takedown Pins
• HIPERFIRE 2.5lb single stage Reflex (curved) or Competition (straight with shoe) Trigger and pins
• CM15 Ambidextrous Bolt Release
• B5 Systems Black Grip

Receiver Extension:
SBPDW Brace and Buffer Tube Assembly – Black Tungsten Cerakote
Odin Adjustable Buffer AR15

Upper:
CM15 Bolt Carrier Group:

• Milspec 9310 steel
• HPT Bolt (High Pressure Tested/ Proof)
• MPI Bolt (Magnetic Particle Inspected)
• Nitride coated bolt
• Nitride coated Carrier
• Nitride coated Gas Key
• Gas Key Hardened to USGI Specifications
• Grade 8 Hardened Fasteners Key Staked Per Mil-Spec
• Tool Steel Extractor

CM15 Ambi Charging Handle – 7075 Aluminum
CM15 Dust Cover
CM Pistol Length Gas Tube – Melonite
Superlative Arms .750 Adjustable Gas Block – Melonite
CM15 LWS Low Profile 9.5″ Mlok Handguard – Black Tungsten Cerakote

• 6061 Aluminum
• Dual Taper Attachment System
• Steel Barrel Nut
• QD Attachment at 3 and 9 o’clock positions
• Mlok attachment on sides and bottom
• Full Picatinny Top Rail

B5 Systems Black Rail Covers
5/8×24 Muzzle Device

• Q Brake pictured, but
• Can be substituted with no net price adjustment for DeadAir Keymo or Q Cherry Bomb
• Reach out for price adjustment on other devices.

Barrel:

Teppo Jutsu 10.5″ 338 Spectre Barrel

• 416R Stainless
• Black Cerakote
• 1:6.5 Twist
• Shouldered crown
• 5/8×24 thread pitch
• .750 gas journal
• Pistol Length System

Magazine:
1x20rd DURAMAG 6.8 SPC/338 Spectre Black

OAL: 26.5375″ to 29.0375″
OAW: 6lb/10oz. with unloaded magazine and no accessories (weight and dimensions on other tab are for shipping purposes)
LOP: 10.25″to 12.750″

Dimensions and weight on other tab are for shipping purposes

Warranty – Limited Lifetime
Limited to original purchaser
Limited regarding functional performance
Limited regarding original configuration

AR15 338 Spectre Pistol 10.5″