+1-800-504-5897 Live Chat Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Samson Star-DI and Diamond-DI Carbine Length Drop In Rail System AR-15 Up to $5.73 Off w/ Free S&H — 2 models

Special offer available for this product. Click here to see!
Samson Star-DI Carbine 4 in Length Drop In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4 in Length Drop In Rail System for AR-15
1 of 5 images
Samson Star-DI Carbine 4 in Length Drop In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
2 of 5 images
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
3 of 5 images
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
4 of 5 images
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15
5 of 5 images
Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
You May Also Like
Best Rated Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI571BLK-30RD
Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI571BLK-30RD
(52)
List: $12.95 $11.95 Save Up to $1.00
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
(31)
List: $14.95 $13.95 Save Up to $1.00
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
(45)
List: $17.95 $16.95 Save Up to $1.00
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Remington, 40 Round, Black, 1 Pack, Polymer, MGMPI233BLK-40RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Remington, 40 Round, Black, 1 Pack, Polymer, MGMPI233BLK-40RD
(11)
List: $22.95 $20.45 Save Up to 11%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
(45)
List: $17.95 $16.95 Save Up to $1.00
Best Rated Kinetic Development Group Kinect MLOK Single Picatinny Rail Section, 3Slot, Black KIN5-100
Kinetic Development Group Kinect MLOK Single Picatinny Rail Section, 3Slot, Black KIN5-100
(53)
List: $64.98 $60.11 Save Up to $4.87
Best Rated Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI570BLK-30RD
Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI570BLK-30RD
(12)
List: $15.95 $14.95 Save Up to $1.00
Best Rated TRYBE Defense AR-15 Barrel, Pistol 10.5in, .223 Wylde, Government Profile, Black, BARPIST105223
TRYBE Defense AR-15 Barrel, Pistol 10.5in, .223 Wylde, Government Profile, Black, BARPIST105223
(23)
List: $174.99 $99.99 Save Up to 43%
Best Rated TRYBE Defense 16 in Wylde Government Profile AR Carbine Barrel, .223 Wylde, 1/2X28 Threads, Nitride, Black, BARCARBT16223
TRYBE Defense 16 in Wylde Government Profile AR Carbine Barrel, .223 Wylde, 1/2X28 Threads, Nitride, Black, BARCARBT16223
(23)
List: $172.99 $119.99 Save Up to 31%
Blazin' Deal TRYBE Defense Magnite Ultra Function Lightweight Handguard, Cut Top Rail, M-LOK, Black, 7in, MGHDG-V1-7CR-BL
TRYBE Defense Magnite Ultra Function Lightweight Handguard, Cut Top Rail, M-LOK, Black, 7in, MGHDG-V1-7CR-BL
(27)
List: $119.99 $35.73 Save Up to 70%
Questions & Answers
Customer Reviews
Helpful Positive Review
Great Drop In Rail by AP, February 4, 2016
This is a great option for anyone looking for a drop in rail for their AR 15. This rail is lightweight and of very high quality. This rail does not come with QD attachments. I would definitely recommend Samson products after making this purchase.
4/4 found this helpful
Most Recent Reviews
I retract my earlier review. by David Clark, Verified Owner, September 3, 2025
Handguard is OK. I didn’t have it fully seated in the delta ring which was throwing the poi off so much. Still wish it had been designed with locking screws however. It wiggles so I wouldn’t mount an aiming device like a laser on it.
Most Recent Reviews
wiggles - does not have clamping screws by David Clark, Verified Owner, August 30, 2025
I bought this for the m203 compatible rail notches on the first and last rail slots to fit Knights Armament rail covers for a MK18 mod 0 clone build. Although nicely machined and finished, unfortunately the designers cut corners by not clamping the u...
Read More...
Most Recent Reviews
Mounted on my Stagarms NY compliant AR 15 by Chauncey, Verified Owner, January 24, 2016
Mounted perfectly on my rifle, mounted my light and bipod works perfectly. They want 200 characters in this review so what more can I say about a machined piece of aluminum other than it does what it is suppose to do.
0/6 found this helpful
Read All 4 Reviews
Show In Stock Only
2 Models Available
Handguard Length
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $93.49
You Save Up to 19%
OP Bucks$2.18

Product Info for Samson Star-DI and Diamond-DI Carbine Length Drop In Rail System AR-15

Samson Carbine Length Drop In Rail System for AR-15 is part of the Samson Tactical Accessory Rail System. The Samson-DI is a drop in rail system that does not require permanent modification to the weapon. At 9.1 oz, the STAR-DI by Samson is a solid addition to any carbine. The Samson Diamond DI is a Drop-In two-piece replacement tactical accessory for your standard M4/CAR15 carbine length handguards. Fits all standard carbine-length AR15/M4 weapons, including 9mm ARs. With slight opening up of the top portion, these will fit Adams Arms and similar gas piston conversions too.image

  • Samson Carbine Length Drop-In-Rail System AR-15available models:
  • STAR-DI: Samson Star - Di Rail System AR-15 Carbine Drop-In-Rail System
  • STAR-DI-4: Samson Tactical Accessory Rail System - 4" Drop-In Rail System AR-15 Carbine

In addition to the Samson Drop in rail system , we carry a full complement of shooting accessories and rifle scope mounts, rings and bases as well as other product offerings from Samson. We carry a full line of Samson scope mounts and other tactical rails, scope rings, front sights and rear sights. Everything in our online store is backed by the manufacturer's warranty and our own guarantee of 100% satisfaction with your purchase!

WARNING: California`s Proposition 65

Specifications for Samson Star-DI and Diamond-DI Carbine Length Drop In Rail System AR-15:

Manufacturer: Samson
Color: Black
Finish: Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: M4, AR-15
Gun Type: Rifle
Handguard Type: Drop-In
Handguard Style: Quad Rail
Gun Rail: Picatinny
Gas System Length: Carbine Length
Weight: 9.1 oz
Condition: New
Included Accessories: Standard
Quantity: 1
Caliber: .223 Remington, 9mm Luger, 5.56x45mm NATO
Hand: Ambidextrous

Features of Samson Carbine Length Drop In Rail System for AR-15:

  • No need to remove Delta Ring
  • M203 compatible

Package Contents:

  • Samson Carbine Length Drop In Rail System for AR-15

Samson Star-DI and Diamond-DI Carbine Length Drop In Rail System AR-15 Orderable Models

List of Orderable Models

  • Samson Star-DI Carbine Drop In Rail System for AR-15 , MPN: STAR-DI , UPC: 851725003360 , Code: OI-HZ-DROPIN-STAR-DI
  • Samson Star-DI Carbine 4in Length Drop-In Rail System for AR-15 , MPN: STAR-DI-4 , UPC: 851725003544 , Code: OI-HZ-DROPIN-STAR-DI-4
Compare (0)
1 item has been added
Add at least two items to compare