Springfield Saint M-LOK B5 Rifle 5.56mm 30rd Magazine 16″ Barrel

$887.91

Built around a 16″ CMV Melonite barrel with a 1:8 twist and mid-length gas system, this Springfield Saint delivers reliable 5.56 performance. The B5 Systems M-LOK handguard, flip-up sights, and Accu-Tite tensioned lower make it ready to run right out of the box.

⚠ Special Order — Ships to Our Store
This item isn't stocked on our shelves. It ships to our Rubicon, WI store first, then is available for in-store pickup or transfer to your chosen FFL dealer (firearms only). Typical lead time varies by supplier — our team will follow up with a timeline after you order. Not available for direct home delivery. Firearm sales are final once accepted for transfer; no returns except for verified damage.

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SKU: cssi-dd-FKST916556BB5 Categories: ,
Description

Features:

  • CALIBER: 5.56x45mm NATO (.223 REM)
  • COLOR: Black
  • BARREL: 16" CMV Melonite 1:8
  • SIGHTS: Low Profile Adjustable Flip-Up Rear A2 Front
  • UPPER RECEIVER: Forged 7075 T6 Aluminum Type III Hardcoat Anodized Forward Assist M4 Feed Ramps
  • LOWER RECEIVER: Forged 7075 T6 Aluminum Type III Hardcoat Anodized Accu-Tite Tension System
  • BOLT CARRIER GROUP: M16 w/ Carpenter 158 Steel Bolt HPT/MPI Melonite
  • GAS SYSTEM: Direct Impingement Mid-Length Pinned Gas Block
  • HANDGUARD: B5 Systems Mid-Length M-LOK
  • STOCK: B5 Systems Bravo
  • TRIGGER: Nickel Boron Coated GI
  • MUZZLE DEVICE: A2 Flash Hider
  • RECEIVER EXTENSION: Mil-Spec
  • RECEIVER END PLATE: Mil-Spec
  • BUFFER ASSEMBLY: Carbine "H" Heavy Tungsten Buffer
  • CHARGING HANDLE: GI Style
  • SAFETY SWITCH: Single Side
  • TRIGGER GUARD: B5 Systems Polymer
  • GRIP: B5 Systems Type 23 P-Grip
  • MAGAZINES: (1) 30-Round Magpul PMAG Gen M3
  • WEIGHT: 6 lbs 4 oz
  • LENGTH: 33" – 36.25"
Additional information
Weight11.505 lbs
Dimensions39.750 × 13.250 × 4.000 in
ManufacturerSpringfield Armory
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Shipping and Delivery

PROCESSING & SHIPPING

Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.

FIREARM TRANSFERS

  • Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
  • Your receiving FFL will need to email their license to [email protected] before we can ship.
  • Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.

You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.