US Tactical Systems Back-Up 20 AR Stock - Complete Assembly (660-754)
Have the security of knowing you always have a spare 20-round mag. Includes A2 Stock Mounting HardwareUS Tactical Systems Back-up Twenty With A2 Installation Hardware Have the security of knowing you always have a spare 20-round mag as back-up just in case other ammo sources are not available. The BACK-UP TWENTY™ buttstock adds minimal bulk to the overall weapon, yet the extra magazine may be the difference between life and death. Constructed of durable Dupont® Zytel®, the stock retains the spare magazine using the same latching mechanism as the regular M16A2. The magazine is securely stored in a dust-free environment until the trap door is deliberately opened, and the magazine release button is pushed.
This stock replaces the standard M16A2 or AR-15 buttstock and maintains the weapons existing handling characteristics. Includes a standard size sling loop. Includes Back-up Twenty A2 Installation Hardware Installs on any AR-15 or M16 lower receiver to accept the A2 style Back-Up 20 Stock. This kit contains everything needed to get your Back-Up 20 installed in minutes. Includes Buffer, Buffer Tube, Spring, Stock Extension Cap, and hardware. This kit is a standard size so that it will work on other AR-15 and M16 A2 stock installations as well. Save money by purchasing together! 20 Extra Rounds Durable Dupont Zytel Push Button Design Mounts On M16A1 or AR-15
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The distinction between inferior quality and premium AR 15 Stock is undeniable. At MSP, we only offer AR-15 Accessories from the most trusted brands like US Tactical Systems. Buy with confidence that we stand behind the product we sell.
Customer Ratings & Reviews
Best ar 15 adjustable stock
Amazingly Light Amazingly SimpleVery light and looks great. I got destroyer grey and added some black cheek rests fro ATI, and the grey and black combo is fantastic! Stock is tight without any play at all.
lightest ar 15 stock
Simple and great. This is a great lightweight AR stock option. It feels stable against the shoulder with little to no wiggle. For being one of the lightest available, it seems very tough. Also, it's a great value!
Great lightweight ar stock
This lightweight ar stock is a tight-fitting stock, and it feels robust when shooting. The optional additional rubber butt pad is an excellent addition if you want a little extra LOP. The release lever is a bit sharp in front and doesn't feel as sturdy as I would like. Overall, I'm happy with it and would recommend over the competition at the same price point.
Good no-nonsense AR-15 stock
Good no-nonsense AR-15 stock. The only thing I didn't like was I ordered the extra recoil pad (458 SOCOM), and it's fit was not as lovely as I would have wanted. However, it's probably the most effective recoil pad I've ever used.
Best AR-15 Stock for the price
The reason I bought this stock as it's weight and it certainly is light. The build quality is good, and it is solid. At full extension, there is some wiggle because there isn't a lot of material to engage the buffer tube. But the weight savings make it worthwhile. I don't see it having any reliability issues in operation.
Great AR Stock
This ATI ar stock is well made, and the only issue I had was getting it on my buffer tube. It has spacers that are very stiff to get on so if you are little it may take you a little longer to get it on but once it’s on there is no play or movement, up or down, on the stock and has a great grip pad on the end so when you shoot it stays in place. All in all, great product, I always buy stocks when they are available from ATI, and they work!
Lightest AR-15 stock on the market
Great stock, lightweight, easy to install. I Purchased this with the buttstock pad and the cheek riser. Did I mention it is affordable as well?
Exceptional AR stock!
Exceptional AR stock! The ATI TactLite Stock is lightweight simple to install. I Bought this stock with the buttpad. Did I mention it is affordable as well?