H&R Retro M16A1 Style AR-15 5.56 NATO – 20″ Pencil Barrel, 1/12 Twist, Black

Relive the golden era of American military engineering with the Harrington & Richardson Retro M16A1 Style Rifle in 5.56 NATO. Purpose-built for collectors, history enthusiasts, and retro AR shooters, this faithful recreation combines period-correct aesthetics with modern manufacturing standards for a rifle that looks, feels, and performs like a true American classic.

**Barrel & Gas System**
At the heart of this build is a 20″ H&R pencil barrel crafted from 4150 Chrome Moly Vanadium steel with a parkerized finish and chrome lining for enhanced durability and corrosion resistance. The 1/12 twist rate is optimized for lighter 55-grain projectiles traditionally associated with the original M16A1 platform. The rifle-length gas system and .625″ diameter front sight base topped with a rifle-height front sight base round out the authentic period-correct configuration. The muzzle is threaded 1/2″x28 and fitted with an A1-style muzzle device.

**Receivers & Construction**
The upper receiver is newly manufactured and forged from 7075-T6 aluminum using proprietary NoDak Spud dies, finished in black anodizing for a precise, period-accurate profile without feed ramps — just like the original. The forged aluminum lower is equipped with the H&R Retro fire control group (FCG) and complete A1 furniture, including an A1-style grip and retro flat trigger guard, delivering the unmistakable look and feel of the classic configuration.

**Bolt & Carrier**
The bolt is machined from Carpenter 158 steel for mil-spec strength and reliability, paired with a full-auto profile bolt carrier group for smooth, consistent cycling.

**Furniture & Ergonomics**
M16A1 triangular handguards with heat shields, an A1-style stock, and A1 pistol grip complete the retro package — delivering an authentic handling experience that takes you straight back to the original platform.

**Specifications at a Glance:**
– **Caliber:** 5.56 NATO
– **Barrel Length:** 20″
– **Barrel Profile:** Pencil
– **Barrel Steel:** 4150 Chrome Moly Vanadium
– **Barrel Finish:** Parkerized with Chrome Lining
– **Twist Rate:** 1:12
– **Gas System:** Rifle-Length
– **Muzzle Thread:** 1/2″x28
– **Muzzle Device:** A1 Style
– **Upper Receiver:** M16A1 Forged 7075-T6 (w/o feed ramps)
– **Handguard:** M16A1 Triangular with Heat Shields
– **Bolt Material:** Carpenter 158 Steel
– **BCG Profile:** Full-Auto
– **Grip:** A1 Style
– **Trigger:** H&R Retro Trigger with Flat Trigger Guard
– **Overall Length:** 30″
– **Finish:** Black Anodized
– **Magazine:** 20-Round

This is a hard-to-find retro AR platform that rarely stays in stock. Order online today at VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping. Don’t miss your chance to own a piece of American firearms history.