Description
If you're building a rifle that needs to stay lightweight, the ACE Arule entry length stock is a game changer. This isn't about stripping down your gun until it falls apart. The engineering here is legitimately clever: while the design looks minimalist, it's actually stronger than standard stocks thanks to precision machined aluminum and that reinforced gusset. The gusset sits directly behind the receiver where the buffer tube connects, which is exactly where AR's tend to show wear first.
Why Entry Length Works for Compact Builds
The entry length gives you a much shorter length of pull compared to full-size rifle stocks. That tighter profile makes a difference for quick handling, especially if you're building a shorter-barreled upper. The soft foam overtube wraps around the back, giving you a comfortable cheek weld without any sharp edges digging in during recoil.
What Makes This Stock Actually Tough
The strength comes from that billet machined aluminum work. The butt clamps grip the receiver extension tube directly, and there's a built-in sling mount machined right into the rear. Everything you need is here without unnecessary bulk. This design approach is popular in three-gun competition for good reason: it shaves weight while keeping the rifle reliable and responsive.
What's Actually Included
You get the stock and buffer tube, plus your choice of either a .5 inch or 1 inch recoil pad depending on what you need. The foam cheek pad and sling mount are already part of the stock, so no surprises when it arrives. Just note that the buffer and spring aren't included, so make sure you have those sorted before assembly.
Key Specifications
- Manufacturer: ACE (DoubleStar)
- Manufacturer Part Number: A145B
- UPC: 841348101956
- Model: AR-UL-E
- Stock Type: Entry Length Fixed Stock
- Color: Black
- Material: Aluminum with soft foam overtube
- Cheek Rest: Soft foam overtube
- Reinforcement: Billet machined gusset
- Sling Mount: Machined-in single point mount
- Recoil Pad Options: 0.5 inch or 1 inch (user choice)
- Buffer/Spring Included: No
What’s Included
- ACE Arule Ultra Lite Stock
- Buffer Tube
- Soft foam overtube
- Choice of 0.5 inch or 1 inch recoil pad
- Machined sling mount
Frequently Asked Questions
Does this entry length stock work with shorter AR builds?
Yes, the entry length pull is specifically designed for compact builds and shorter barreled uppers. The reduced length of pull gives you quicker handling and a more maneuverable gun overall, which is why it's popular for tactical setups and competition rifles.
What exactly does the billet gusset do?
The gusset reinforces the receiver extension tube right where it connects to your lower receiver, which is the weakest point on most AR builds. It's machined from solid aluminum and adds real structural strength without adding weight, addressing a common stress point.
Do I need to buy a separate buffer and spring?
Yes, this stock comes with the tube and pad, but you'll need to source your own buffer and spring separately. Make sure you have the right length for your upper receiver configuration before ordering.
How much lighter is this compared to a standard A2 stock?
The Arule stock is significantly lighter than a standard A2 or adjustable six-position stock while actually being stronger. It's designed for builds where every ounce counts, without compromising on durability or the structural integrity of your receiver.







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