Custom Bushmaster XM15-E2S with A.R.M.S. #50SC Bi-Level S.I.R System AR-15

SOLD FOR: $2503

WOA#: WY230118EC005

Make: Bushmaster / A.R.M.S., Inc

Model: XM15-E2S

Serial Number: L032246

Year of Manufacture: Modern

Caliber: 5.56 / .223

Action Type: Semi-Automatic

Markings: The left side of the receiver is marked, “Bushmaster L032246 CAL. 223-5.56MM MOD XM15-E2S B.F.I. Windham. ME. U.S.A. SAFE FIRE”. The right side of the receiver is marked, “SAFE” and “FIRE” on the opposite end of the safety selector.  The bottom of the buttstock is marked, “TROY CAGE CODE 3EZ11 MADE IN USA PATENT PENDING LOT# MG-11476”.  The top of the rail is marked with the A.R.M.S. Swan Logo and “#5002 BI-LEV.  A.R.M.S. S.I.R. #50SC BI-LEV”.  The left side of the rail is marked, “PAT. NO. 6,490,822 B1”.  The right side of the charging handle housing is marked with a keyhole forge mark.  The left side of the pistol grip is marked, “MAGPUL”.  The right side of the pistol grip is marked, “MIAD PAT PENDING”.  The bottom of the handguard is marked with the A.R.M.S. Logo as well as “SC”.  The left picatinny is marked, “1”.  The bottom picatinny is marked “4” with the swan logo.  The right picatinny is marked “4”. The bottom of the barrel is marked m “C MP B”.  The rear sight is marked, “A.R.M.S. with the swan logo and “PAT NO. 5,533,292”.  The flash hider is marked, “Fabian Bros MUZZLE STABILIZER CAL. 5.56”.  The charging handle is marked, “RAPTOR BY AXTS”.  The rear of the rear sight is marked, “40-L”.

Barrel Length: 16” threaded. 18.5” with Fabian Bros Muzzle Stabilizer.

Sights / Optics:  The front sight is an A2 Front post sight with elevation adjustment.  The rear sight is an A.R.M.S.® #40™L LOW PROFILE REAR SIGHT.

Stock Configuration & Condition:  The rifle is equipped with:

1.Troy Industries Battle Ax CQB Lightweight Collapsible Buttstock with ambi QD mounts, large compartmentalized storage compartment, cheek welds, and top positioned sling loop.

  1. A.R.M.S.® #50™M BI-LEVEL S.I.R.® SYSTEM with additional front BI-Level extender. The extension can be removed to allow co-witnessing of heads up display optics in conjunction with the rear sights.  The 3 o’clock picatinny has a sling swivel as well as behind the bayonet lug in front of the handguard.
  2. The pistol grip is a Magpul MIAD (OD GREEN) grip with adjustable front and backstraps.  The pistol grip features a MIAD GRIP CORE that holds an extra Bolt and Firing Pin as well as a cotter pin.  (PLEASE SEE PHOTOS).
  3. The receiver is fitted with KNS Non-Rotating Trigger and hammer Pins Mod2.
  4. The trigger has been upgraded to a Rock River Arms National Match trigger set (including trigger, hammer, and disconnect).
  5. The buffer is upgraded to a Spike’s Tactical Tungsten-2 Heavy Buffer for the highest performing, softest shooting, smoothest and quietest buffer on the market.  .
  6. The Bolt is a JD Enterprise Enhanced Bolt rated for 70,000 rounds
  7. The Bolt Carrier is Nickel Boron Coated for optimal performance and longevity with greater lubricity and corrosion resistance than both chrome or nitride BCGs.
  8. The safety selector has been upgraded to a Battle Arms Developement Ambidextrous Safety
  9. The mag release has been upgraded to a Norgon brand ambidextrous mag release.
  10. The Buffer Tube Adapter has been upgraded with Ambidextrous QD Mounts.
  11. The charging handle has been upgraded to an Ambi-Black Radian Raptor charging handle.
  12. The top of the monolithic picatinny rail is mounted with a foldable carry handle.
  13. The muzzle device is also upgraded to a Fabian Bros Muzzle Stabilizer with extreme recoil reduction for precise and accurate rapid fire.
  14. The upper is NP-3 coated by R-guns

There is some superficial light wear from responsible use with some light scratching in a few places.  The screw heads are used but remain mostly sharp.    The LOP measures 14” from the front of the trigger to the back of the fully extended buttstock. The stock rates in about Fine overall condition.

Magazine Quantity & Condition: One 20rd Colt Straight Aluminum Magazine in Fine Condition.

Type of Finish: Anodized

Finish Originality: Original

Bore Condition: The bore is bright, the rifling is sharp. There is no visible erosion in the bore.

Overall Condition: This rifle retains about 95% of its metal finish.  There are some light scratches on the sides of the receiver as well as some scuffs on the barrel and edges of the carry handle base.  The screw heads are mostly sharp and pins are unmarred. The markings are clear. Overall, this rifle rates in about Fine condition.

Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork & Accessories: Soft Case and a total of one magazine.

Our Assessment: 

Me: I want an M249 SAW

Wife: We have an M249 SAW at home.

For those who understood the memage, thank you for enduring.

Funny business aside, we are looking at one of the sweetest AR builds to ever wander through our shop.  Made in limited production and pretty scarce nowadays due to being discontinued – the unique A.R.M.S. S.I.R. System on this rifle is sure to stand out far above the rest in a market saturated with black rifles.  The modular receiver sleeve system is a rigid ultra-light platform on which to mount virtually any mission specific accessory.  The unique design allows quad rail positioning, free float barrel with no Delta Ring, enhanced cooling, quick change lower handguard, QD indirect airflow heat shield, M203 Grenade Launcher free float attachment, and really much much more. This is one of the most advanced forend configurations for an AR-15 specialized to increase accuracy and longevity.  The list of specs in the Configuration description are enough to elevate this rifle to the top of the food chain in the world of AR-15’s.  If you are looking for that special build to really make that arsenal stand out and turn heads at the range, this rifle will suit every need. Make that arsenal better than the rest!  Good Luck and happy bidding!

Custom Bushmaster XM15-E2S with A.R.M.S. #50SC Bi-Level S.I.R System AR-15
Custom Bushmaster XM15-E2S with A.R.M.S. #50SC Bi-Level S.I.R System AR-15