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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.
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Read All 4 Reviews
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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
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