DPMS 16″ 556 13.5 QUAD-RAIL 30RD BLK

The DPMS 16″ 556 13.5 QUAD-RAIL 30RD BLK is a factory-built semi-auto rifle that delivers a genuine 1 MOA capable platform straight out of the box, chambered in 5.56 NATO with a 1:7 twist chrome-moly vanadium steel barrel and a carbine-length gas system. This is the DPMS 16″ 556 13.5 quad-rail 30rd blk — a no-nonsense precision shooter’s tool built on a forged 7075-T6 aluminum lower with a MIL-SPEC buffer tube and an M4-style stock.

Key Features

• Chrome-Moly Vanadium Steel Barrel — Why it matters: This 16″ A2 profile barrel with a 1:7 twist rate stabilizes heavy match bullets from 62gr to 77gr, giving you consistent sub-MOA groups at 100 yards when paired with quality optics.
• 13.5″ DPMS M-Lok Free-Float Handguard — Why it matters: The free-float design eliminates barrel contact points, preserving accuracy by preventing pressure shifts during string fire, and the M-Lok slots let you attach bipods, rails, or weights without adding bulk.
• Forged 7075-T6 Aluminum Lower Receiver — Why it matters: Hard-coat anodized and marked “MULTI” for caliber flexibility, this receiver is stronger than billet alternatives and resists wear even under high-round-count training schedules.
• MIL-SPEC 6-Position Buffer Tube with M4 Stock — Why it matters: The 7075-T6 tube gives you six length-of-pull positions for shooting from prone to barricade, and the M4-style stock provides a cheek weld consistent with competition setups.
• Carbine-Length Gas System with Low-Profile Block — Why it matters: The carbine gas system cycles reliably with a wide range of 5.56 loads, while the low-profile block tucks under the handguard for a clean, snag-free profile.

Who It’s For

This rifle is built for the long-range shooter who wants a factory gun that doesn’t require an immediate barrel swap. If you’re shooting PRS-style gas gun matches, training at 300-600 yards with 77gr SMKs, or building a reliable carbine for steel plate days, the DPMS 16″ 5.56 delivers accuracy without the custom-build price tag. It’s also a solid option for the hunter who needs a lightweight, flat-shooting rifle for varmints or coyotes out to 400 yards.

Pros & Cons

• Pro: Genuine 1:7 twist barrel accepts heavy match bullets — a must for precision shooters who want to push past 500 yards.
• Pro: Forged 7075-T6 receivers and MIL-SPEC tube ensure durability under sustained fire.
• Pro: Free-float M-Lok handguard makes adding accessories easy without removing the barrel.
• Con: The A2 flash hider is functional but not optimized for suppressor mounting — you’ll need to swap it if you run a can.

Comparison: DPMS vs. Competitors

The DPMS offers the same barrel steel and receiver material as the Geissele at roughly one-third the cost, though you lose the sub-MOA guarantee. For the price, it’s a strong value for shooters who plan to upgrade triggers or barrels later.

FAQ

Why Buy from Us

• ✔ Nationwide delivery to all 50 states
• ✔ Ships within 1-2 business days
• ✔ 30-day return policy on unused items
• ✔ Secure checkout with encrypted payment

Browse more semi-auto rifles in our Semi Auto Rifles category, or check out our AR-15 parts and uppers for custom builds. Last updated: April 2026. According to NSSF data, over 40% of new rifle buyers in 2025 chose a 16″ barrel length for its balance of velocity and maneuverability — this DPMS fits that sweet spot perfectly.