This is the SAINT® for the rugged individualist who appreciates the classics. The lightweight mid-length direct gas impingement operating system offers superlative reliability. Top-end B5 Systems furniture combines comfort with ample M-Lok® space so you can customize your SAINT to fit your unique personality. The traditional front sight base is both unbreakable and foolproof. A 16" chrome moly vanadium Melonite-coated 1:8"-twist barrel strikes the perfect balance between compact portability and rugged performance.

SA ST916556B-B5-FL

Retail: $1,023.00
Price: $789.00
You Save: $234.00 (22.9%)

In Stock

Manufacturer LE/Mil Program Pricing - Purchaser Must Provide Proof of Eligibility. Please see Eligibility Information tab for Eligibility Requirements.


B5 Systems Bravo Stock

  • The B5 Systems Bravo Stock features rugged construction and thoughtful design, from its ergonomic cheekweld to its integrated QD sling mounts and no-slip cushioned buttpad.

B5 Systems M-Lok® Handguard

  • Ultra-slim and exceedingly tough, the composite B5 Systems handguard features M-Lok slots and built-in stamped metal heat shields.

B5 Systems Type 23 P-Grip

  • The composite B5 Systems Type-23 P-Grip delivers enhanced ergonomics through its steep angle, extended tang and palm-filling design.

Order Details

  • Not available where prohibited by law
  • Proof of eligibility is required and we will keep a copy of the eligibility on file.
  • Offer not available in all states
  • All web sales must go through a Federal Firearms Licensee
  • Your order confirmation will contain information on how to submit your qualification credentials and FFL's information
  • Coupon codes/Discount codes not applicable
  • Please check out the Individual Firearms Sales page for more details on the ordering process.
5.56x45mm NATO (.223 REM)
16" CMV, Melonite®, 1:8
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
B5 Systems Mid-Length, M-Lok
Muzzle Device
A2 Flash Hider
Receiver Extension
Receiver End Plate
Buffer Assembly
Carbine "H" Heavy Tungsten Buffer
Charging Handle
GI Style
Safety Switch
Single Side
Trigger Guard
B5 Systems, Polymer
GripB5 Systems Type 23 P-Grip
Magazines(1) 30-Round Magpul® PMAG® Gen M3™
Weight6 lbs 4 oz
Length33" - 36.25"

We are proud to participate in Springfield Armory's LE/Military/1st Responder known as FirstLine program which offers Springfield Armory weapons at significant discounts to eligible customers. Eligible customers are:

  • Military: Active, Reserve, NG, Retired, Honorably Discharged (Excludes Contractors & Civilian Employees)
  • Law Enforcement: including Federal, State, County & City. also includes retired LE officers with “retired” credentials (LE department picture ID front & back)
  • Corrections Officers including Parole and Probation Officers (agency picture ID front and back)
  • Firefighters, Paramedics, and EMT's (Agency picture ID – front and back) Certifications alone do not qualify.
  • Licensed Federal, State, City and Private Armed Security Officers Must be employed by a state-licensed company (company picture ID – front and back)
  • Court Judges & Prosecutors (employment ID – front and back)
  • LE Academy Cadets (employment documentation from the academy)
  • Commercial Pilots & Federal Flight Deck Officers (commercial airline ID required)

Springfield Armory's program requires that dealers submit copies of proof of customer eligibility to Springfield Armory. By participating in the program and submitting proof of eligibility, you acknowledge that your purchase information, including serial number will be sent to and kept on file by Springfield Armory.

You MUST qualify as one of the above in order to purchase LE/MIL weapons under the program. In accordance with our manufacturer agreements, we are only permitted to sell LE/Mil program weapons to eligible individuals.