Straight-Pull AR-15 Parts: What Fits Your Rifle

If you run a straight-pull AR-15, almost every part on this site fits your rifle — with one exception worth knowing about before you order.

Straight-pull rifles are manually cycled rather than self-loading, and they are a common way to run an AR-pattern rifle in the UK. Mechanically, most are built on a standard AR-15 pattern lower receiver with a modified upper and bolt carrier. That single fact is what makes parts selection straightforward: if a component attaches to the lower receiver, the buffer tube or the handguard, it fits exactly as it would on any AR-15.

This guide covers mechanical fitment only. For anything to do with certificates or what you may own, speak to your force's firearms licensing department — they are the authority, not us.

The short answer

• Stocks and buffer tubes — fit, if the tube is Mil-Spec diameter
• Pistol grips — fit
• Handguard and M-LOK accessories — fit
• Backup iron sights — fit any Picatinny rail
• Slings, sling mounts and bipods — fit
• Triggers and safety selectors — fit a standard AR lower
• Charging handles — check first. This is the one that varies

Stocks and buffer tubes

Any AR-15 stock we sell will fit a straight-pull build running a Mil-Spec diameter carbine receiver extension. The distinction that actually matters is Mil-Spec versus commercial diameter — commercial tubes are slightly larger and will not take a Mil-Spec stock. That is true of any AR-15, straight-pull or not.

Measure or check your buffer tube specification before ordering. If you are unsure which you have, our guide to choosing an AR-15 stock explains how to tell them apart, along with length of pull and cheek weld.

Browse rifle stocks or precision-adjustable stocks.

Pistol grips

Grips bolt to the lower receiver through the standard grip screw, so they are a direct fit. This is the cheapest meaningful upgrade on any rifle and one of the easiest to fit — one screw, five minutes.

See grips and foregrips, or read AR-15 grips explained for the difference between grip angles and between vertical and angled foregrips.

Handguards, M-LOK and foregrips

Anything that mounts to your handguard is unaffected by how the rifle cycles. If your forend has M-LOK slots, M-LOK accessories bolt straight on; if it has Picatinny rail, rail-mounted accessories do the same.

Our M-LOK vs Picatinny guide covers which interface you have and what each will accept. Shop M-LOK accessories.

Backup iron sights

Flip-up sights clamp to MIL-STD-1913 Picatinny rail. If your rifle has a flat-top upper, they fit. Offset 45-degree sights work the same way.

See iron sights and backup sights, or compare polymer against steel in our MBUS 3 vs MBUS Pro comparison.

Slings, sling mounts and bipods

Sling attachment points mount to the handguard, the stock or the receiver end plate, and bipods mount to M-LOK, Picatinny or a sling stud. None of these interact with the action.

Shop slings and sling mounts or bipods and mounts.

Triggers and safety selectors

A drop-in trigger fits the standard AR-15 trigger pocket and uses standard 0.154in pins, so a straight-pull rifle built on an AR-15 pattern lower takes the same triggers as any other AR. The same applies to ambidextrous safety selectors, which sit in the lower receiver.

Worth knowing: on a manually cycled rifle you are not fighting a gas system, and a lighter, crisper break is often more noticeable than it is on a self-loader. Our AR-15 trigger guide covers single-stage versus two-stage and pull weight.

Shop AR-15 triggers.

Charging handles — the one to check

This is the part that catches people out, and it is worth being clear about. Straight-pull AR-15s are converted in different ways by different makers. Some retain a conventional rear charging handle and take a standard AR-15 charging handle without modification. Many others use a side-charging or forward-charging upper, where the cycling handle is part of the conversion itself and a standard AR charging handle is either not used or will not fit.

We are not going to guess which yours is. If you are looking at an ambidextrous charging handle, send us your rifle's make and model and we will confirm before you buy. Ambidextrous safety selectors are unaffected — those fit a standard lower regardless.

See charging handles and safety selectors, or read our guide to ambidextrous AR-15 controls.

What we don't sell

Being straight about the gaps, because a guide is not much use otherwise. We stock parts and furniture — we do not sell complete rifles, straight-pull conversions, uppers, bolt carriers or moderators. If you need any of those, a specialist straight-pull builder or your local RFD is the right place to go.

Still not sure?

Tell us what you are running and what you are trying to achieve, and we will tell you what fits — including when the answer is that we don't have the right part for it. Get in touch.

Or browse everything in AR-15 parts and accessories, and see all our buying guides.